Organizational tools on a multi-touch display device

ABSTRACT

A process for enabling objects displayed on a multi-input display device to be grouped together is disclosed that includes defining a target element that enables objects displayed on a multi-input display device to be grouped together through interaction with the target element. Operations are invoked that establish a relationship between a particular displayed object and a position on the target element and that causes transformations applied to the target element also to be applied to the particular displayed object while maintaining the relationship between the particular displayed object and the position on the target element.

CROSS REFERENCE TO RELATED APPLICATION

This application claims the benefit of U.S. patent application No.12/785,134, filed May 21, 2010, and titled “Organizational Tools on aMulti-touch Display Device”, which claims priority to U.S. ProvisionalApplication No. 61/180,408 filed May 21, 2009, and titled“Organizational Tools on a Multi-touch Display Device”, the disclosuresof which are considered part of (and are incorporated by reference in)the disclosure of this application.

TECHNICAL FIELD

This disclosure relates to organizational tools on a multi-touch displaydevice.

BACKGROUND

Multi-touch display devices often adopt many of the characteristics oftouch-screen display devices, and yet they are generally moresophisticated than traditional touch-screen display devices in that theyare capable of detecting the presence and location of multiple toucheson, within, or within the vicinity of the surface of the display area atthe same time. Specifically, multi-point input computing systemsreceive, recognize, and act upon multiple inputs at the same time.Because multi-point input computing systems are capable of receiving,recognizing, and acting upon multiple inputs at the same time,multi-point input computing systems may enable multiple users tointeract with individual systems at the same time, thereby providing forcollaboration between the multiple users.

Like traditional touch-screen display devices, some multi-touch displaydevices require that a user physically touch the surface of the displayarea with one or more fingers, styluses, and/or other mechanisms inorder to engage the surface of the multi-touch display device, whileother multi-touch display devices are capable of receiving input bydetecting that one or more fingers, styluses, and/or other inputmechanisms have engaged the surface of the multi-touch display device byhovering around, or otherwise in the vicinity of, the surface of thedisplay area without requiring that the input mechanism actually makephysical contact with the surface of the touch-screen display device.

SUMMARY

In a general aspect, a method for performing a sealing transformation ona first subset of a set of grouped objects displayed on a multi-inputdisplay device while preserving a present scale of objects within asecond subset of the grouped objects is disclosed that includes defininga target element that enables objects displayed on a multi-input displaydevice to be grouped together through interaction with the targetelement, the target element having a one-dimensional extent and defininga set of objects. The method further includes invoking processes thatestablish associations between constituent objects of the set andcorresponding positions along the one dimensional extent of the targetelement that cause the associations between the constituent objects ofthe set and the corresponding positions along the target element to bemaintained when the one-dimensional extent of the target element istranslated such that the constituent objects of the set are translatedas a function of the translation of the positions along theone-dimensional extent of the target element with which they areassociated. The method further includes displaying at least a portion ofthe target element. The method further includes displaying objectsassociated with positions along the one-dimensional extent of the targetelement that fall within the displayed portion of the target element ina manner that is consistent with the spatial relationships between thedisplayed objects defined by the positions along the one-dimensionalextent of the target element with which the displayed objects areassociated. The method further includes detecting that a first inputmechanism has engaged the target element at a first contact point alongthe one-dimensional extent of the target element. The method furtherincludes, while the first input mechanism remains engaged with thetarget element, detecting that a second input mechanism has engaged thetarget element at a second contact point along the one-dimensionalextent of the target element that is removed from the first contactpoint by a span along the one-dimensional extent of the target element,the first and second contact points defining a specific region of theone-dimensional extent of the target element that includes at least oneposition that is associated with a corresponding particular displayedobject. The method further includes, as a consequence of detecting thatthe first input mechanism has engaged the target element, monitoringmovements of the first input mechanism while the first input mechanismremains engaged with the target element. The method further includes, asa consequence of detecting that the second input mechanism has engagedthe target element, monitoring movements of the second input mechanismwhile the second input mechanism remains engaged with the targetelement. The method further includes, based on monitoring movements ofthe first input mechanism and the second input mechanism while the firstand second input mechanisms remain engaged with the target element,detecting that at least one of the first and second input mechanisms hasmoved while remaining engaged with the target element such that the spanalong the one-dimensional extent of the target element between the firstand second input mechanisms has increased. The method further includes,as a consequence of detecting that the span along the one-dimensionalextent of the target element between the first and second inputmechanisms has increased, applying a one-dimensional scaling operationto the specific region of the one-dimensional extent of the targetelement as a function of the increase in the span along theone-dimensional extent of the target element between the first andsecond input mechanisms while preserving a scale of the one-dimensionalextent of the target element outside of the specific region of theone-dimensional extent of the target element. The method furtherincludes, as a consequence of detecting that the span along theone-dimensional extent of the target element between the first andsecond input mechanisms has increased and as a consequence of applyingthe one-dimensional scaling operation to the specific region of theone-dimensional extent of the target element as a function of theincrease in the span along the one-dimensional extent of the targetelement, applying a corresponding scaling operation to the particulardisplayed object that is associated with the position that falls withinthe specific region of the one-dimensional extent of the target elementwhile preserving a scale of other constituent objects that areassociated with positions along the one-dimensional extent of the targetelement that do not fall within the specific region of theone-dimensional extent of the target element.

In some implementations, the method may further include, after applyingthe corresponding sealing operation to the particular displayed object,detecting that the first input mechanism has disengaged the targetelement, and detecting that the second input mechanism has disengagedthe target element. The method may further include, as a consequence ofdetecting that the first and the second input mechanisms have disengagedthe target element, undoing the one-dimensional scaling operationapplied to the specific region of the one-dimensional extent of thetarget element. The method may further include, as a consequence ofundoing the one-dimensional scaling operation applied to the specificregion of the one-dimensional extent of the target element, undoing thecorresponding sealing operation applied to the particular displayedobject.

In some implementations, the method may further include, as aconsequence of detecting that the span along the one-dimensional extentof the target element between the first and second input mechanisms hasincreased, a factor by which the span along the one-dimensional extentof the target element between the first and second input mechanisms hasincreased, wherein applying the corresponding scaling operation to theparticular displayed object may include increasing the size of theparticular displayed object by a factor that corresponds to the factorby which the span along the one-dimensional extent of the target elementbetween the first and second input mechanisms increased.

In some implementations, preserving the scale of other constituentobjects that are associated with positions along the one-dimensionalextent of the target element that do not fall within the specific regionof the one-dimensional extent of the target element may includepreserving the size of the other constituent objects that are associatedwith positions along the one-dimensional extent of the target elementthat do not fall within the specific region of the one-dimensionalextent of the target element. Preserving the scale of other constituentobjects that are associated with positions along the one-dimensionalextent of the target element that do not fall within the specific regionof the one-dimensional extent of the target element may further includetranslating the other constituent objects that are associated withpositions along the one-dimensional extent of the target element that donot fall within the specific region of the one-dimensional extent of thetarget element in order to maintain the spatial relationships betweenthe displayed objects defined by the positions along the one-dimensionalextent of the target element with which the displayed objects areassociated.

In some implementations, the method may further include, based onmonitoring movements of the first input mechanism and the second inputmechanism while the first and second input mechanisms remain engagedwith the target element, detecting, after applying the correspondingscaling operation to the particular displayed object, that at least oneof the first and second input mechanisms has moved while remainingengaged with the target element such that the span along theone-dimensional extent of the target element between the first andsecond input mechanisms has decreased. The method may further include,as a consequence of detecting that the span along the one-dimensionalextent of the target element between the first and second inputmechanisms has decreased, applying a one-dimensional scaling operationto the specific region of the one-dimensional extent of the targetelement as a function of the decrease in the span along theone-dimensional extent of the target element between the first andsecond input mechanisms while preserving a scale of the one-dimensionalextent of the target element outside of the specific region of theone-dimensional extent of the target element. The method may furtherinclude, as a consequence of detecting that the span along theone-dimensional extent of the target element between the first andsecond input mechanisms has decreased and as a consequence of applyingthe one-dimensional scaling operation to the specific region of theone-dimensional extent of the target element as a function of thedecrease in the span along the one-dimensional extent of the targetelement, applying a corresponding scaling operation to the particulardisplayed object that is associated with the position that falls withinthe specific region of the one-dimensional extent of the target elementwhile preserving a scale of the other constituent objects that areassociated with positions along the one-dimensional extent of the targetelement that do not fall within the specific region of theone-dimensional extent of the target element.

In some implementations, the method may further include, after applyingthe corresponding scaling operation to the particular displayed object,detecting that the first input mechanism has disengaged the targetelement, and detecting that the second input mechanism has disengagedthe target element. The method may further include, after detecting thatthe first input mechanism has disengaged the target element anddetecting that the second input mechanism has disengaged the targetelement, maintaining the one-dimensional scaling operation applied tothe specific region of the one-dimensional extent of the target elementand maintaining the corresponding sealing operation applied to theparticular displayed object despite the first and second inputmechanisms having disengaged the target element.

DESCRIPTION OF DRAWINGS

FIGS. 1A-1J are diagrams of a multi-touch display device configured toprovide rectangular two-dimensional organizational tools to users of themulti-touch display device to enable the users to organize objectsdisplayed by the multi-touch display device.

FIG. 2 is a diagram of a multi-touch display device configured toprovide one-dimensional linear organizational tools to users of themulti-touch display device to enable the users to organize objectsdisplayed by the multi-touch display device.

FIG. 3 is a diagram of a multi-touch display device configured toprovide two-dimensional rotary organizational tools to users of themulti-touch display device to enable the users to organize objectsdisplayed by the multi-touch display device.

FIG. 4A is a flowchart of an example of a first process for attaching anobject to a rectangular two-dimensional organizational tool.

FIGS. 4B-4E illustrate four variations of the attachment processillustrated in FIG. 4A.

FIG. 4F is a flowchart of an example of a second process for attachingan object to a rectangular two-dimensional organizational tool.

FIGS. 4G and 4H illustrate two variations of the attachment processillustrated in FIG. 4F.

FIG. 5A is a flowchart of an example of a process for detaching anobject from a rectangular two-dimensional organizational tool.

FIGS. 5B-5F illustrate five variations of the detachment processillustrated in FIG. 2A.

FIG. 6A is a diagram illustrating a multi-touch display deviceperforming transformations to an organizational tool and its attachedobject when the attached objects are attached to the organizational toolat two or more points.

FIG. 6B is a diagram illustrating a multi-touch display deviceperforming transformations to an organizational tool and its attachedobject when the attached objects are attached to the organizational toolat only one point.

FIG. 7A is a flowchart of an example of a process for organizing objectsattached to a rectangular two-dimensional organizational tool.

FIGS. 7B and 7C illustrate two variations of the organizing processillustrated in FIG. 7A.

FIG. 8A is a flowchart of m example of a process for merging/composingtwo rectangular two-dimensional organizational tools.

FIG. 8B is a diagram illustrating a multi-touch display device composingtwo overlapping organizational tools and detaching two composedorganizational tools.

FIG. 8C is a diagram illustrating a multi-touch display device mergingtwo overlapping organizational tools and splitting the single, mergedorganizational tool into multiple separate organizational tools.

FIG. 9 is a diagram illustrating an alternative implementation of therectangular two-dimensional organizational tool.

FIG. 10 is a diagram of a multi-touch display device that provides aone-dimensional linear organizational tool that illustrates techniquesfor attaching objects to the one-dimensional linear organizational tool.

FIG. 11 is a diagram of a multi-touch display device that provides aone-dimensional linear organizational tool that illustrates techniquesfor detaching objects from the one-dimensional linear organizationaltool.

FIG. 12A is a flowchart of an example of a process for organizingobjects attached to a linear one-dimensional organizational tool.

FIGS. 12B and 12C are diagrams of a multi-touch display device thatillustrate two different examples the multi-touch display deviceautomatically adjusting the angular orientation of an object uponattaching the objects to a one-dimensional linear organizational tool.

FIG. 13 is a diagram illustrating a multi-touch display deviceperforming transformations to a one-dimensional linear organizationaltool and its attached objects when the attached objects are attached tothe organizational tool at only one point.

FIGS. 14A-14E are diagrams illustrating a multi-touch display deviceperforming transformations to a one-dimensional linear organizationaltool and displaying a preview screen of the one-dimensional linearorganizational tool in accordance with the transformations.

FIG. 15 is a sequence of diagrams of a multi-touch display device 1500that provides a one-dimensional linear organizational tool 1524 andcontrols for increasing and/or decreasing the scale of one or moreportions of the one-dimensional linear organizational tool.

FIGS. 16A and 16B illustrate how different parts of a single attachmentstrip may be viewed through multiple organizational tools, possibly onmore than one multi-touch display device.

FIG. 17 is a diagram of a multi-touch display device that provides atwo-dimensional rotary organizational tool that illustrates techniquesfor attaching objects to the two-dimensional rotary organizational tool.

FIG. 18 is a diagram of a multi-touch display device that provides atwo-dimensional rotary organizational tool that illustrates techniquesfor detaching objects from the two-rotary organizational tool.

FIGS. 19( a)- 19(d) are diagrams of a multi-touch display device thatillustrate an example of the multi-touch display device automaticallyadjusting the angular orientation of an object upon attaching the objectto a two-dimensional rotary organizational tool.

FIGS. 19( e)-19(f) are diagrams of a multi-touch display deviceautomatically adjusting the angular orientation of an object upondetaching the object from a two-dimensional rotary organizational tool.

FIG. 20 is a diagram illustrating a multi-touch display deviceperforming transformations to an organizational tool and its attachedobjects when the attached objects are attached to the organizationaltool at only one point.

FIG. 21 is a diagram illustrating a multi-touch, display deviceproviding controls for organizing objects attached to an organizationaltool.

DETAILED DESCRIPTION

A multi-touch display device provides one or more organizational toolsthat enable a user to organize objects displayed by the multi-touchdisplay device. Such objects displayed by the multi-touch display devicemay include, for example, images, videos, and/or documents. Themulti-touch display device may be configured to concurrently providemultiple organizational tools such that each of the multipleorganization tools may be used concurrently by one or multiple users ofthe multi-touch display device. The concurrent provision of multipleorganizational tools on the same multi-touch display device (or onmultiple logically related multi-touch display devices) may facilitatecollaboration between (or at least concurrent use by) multiple users by,for example, providing each of the multiple users with one or morepersonal organizational tools tor organizing displayed objects withwhich the user is working.

FIGS. 1A-1J are illustrations of a multi-touch display device 100configured to provide organizational tools to users 102 and 104 of themulti-touch display device 100 to enable the users to organize objectsdisplayed by the multi-touch display device 100. Furthermore, FIGS.1A-1J illustrate examples of different user interactions with theorganizational tools provided by the multi-touch display device 100.

Referring to FIG. 1A users 102 and 104 are interacting with multi-touchdisplay device 100, which is displaying objects 106, 108, 110, 112, 114,116, 118, 120, and 122 and organizational tools 124 and 126 on a canvas127. Each of users 102 and 104 may manipulate objects 106, 108, 110,112, 114, 116, 118, 120, and 122, organizational tools 124 and 126, andcanvas 127 by engaging the surface of the multi-touch display device 100with, for example, his/her fingers. Among other manipulations, users 102and 104 may move, resize, annotate, or edit objects 106, 108, 110, 112,114, 116, 118, 120, and 122, organizational tools 124 and 126, or canvas127.

Organizational tools 124 and 126 provide a personalized virtual paletteupon which users may attach and organize objects in a manner thatenables manipulations similar to functionality provided by a corkboard.However, organizational tools 124 and 126 provide several additionalfeatures. For example, each organizational tool 124 and 126 includes acontrol strip 128 and 130, respectively. In one implementation, objectsattached to the organization tool will be displayed as though they arepositioned behind the control strip, or at a visual level further fromthe surface of multi-touch display device 100 than the control strip128. Thus, object 106, which is attached to organizational tool 124 inFIG. 1B, is shown behind control strip 128 in that figure. As a result,the control strip is displayed no matter how many objects are attachedto the organizational tool or how cluttered the organizational toolbecomes. In this way, a user will be able to interact with andmanipulate the organizational tool despite the current number andposition of attached objects. By engaging the control strip of theorganizational tool, a user may manipulate the organizational tool by,for example, moving, rotating, or resizing the organizational toolthrough interaction with its control strip.

As discussed above, displayed objects may be attached by users to theorganizational tools 124 and 126 provided by the multi-touch displaydevice 100, for example, to facilitate organization of the canvas 127and/or to store such attached objects for later access. For example,referring again to FIG. 1B, the multi-touch display device 100 showsobjects 106 and 114 attached to organizational tool 124 in response toinput received from user 102 by the multi-touch display device 100.Similarly, the multi-touch display device 100 shows object 118 attachedto organizational tool 126 in response to input received from user 104by the multi-touch display device 100.

In some implementations, attaching displayed objects to organizationaltools involves moving the displayed objects into the vicinity of theorganizational tools. For example, FIG. 1B shows user 102 engaging themulti-touch display device 100 and moving object 112 over organizationaltool 124 in order to attach object 112 to organizational tool 124 whileuser 104 is engaging the multi-touch display device 100, and it showsuser 104 engaging the multi-touch display device 100 and moving object122 over organizational tool 126 to attach object 122 to organizationaltool 126. Similarly, as shown in FIG. 1C, in response to users 102 and104 moving objects 112 and 122 over organizational tools 124 and 126,respectively, multi-touch display device 100 shows objects 112 and 122attached to organizational tools 124 and 126, respectively. Varioustechniques for attaching objects to organizational tools, such asorganizational tools 124 and 126, are described in greater detail below.

In some implementations, canvas 127 may be infinite or at least have anextent that is larger than the visual display of the multi-touch displaydevice 100. As such, the multi-touch display device 100 may providecontrols to users of the multi-touch display device 100 that enable theusers to instruct the multi-touch displays device 100 to translateand/or scale the canvas 127 to modify the region of the canvas 127 thatis visually displayed by the multi-touch display device 100. In suchimplementations, organizational tools provided by the multi-touchdisplay device 100 and their attached objects may be immune to (e.g.,unaffected by) certain transformations applied to the canvas 127.Consequently, such organizational tools may serve as convenientmechanisms for storing objects at a desired position on the multi-touchdisplay device 100 when transformations are applied to the canvas 127.

FIGS. 1D-1F illustrate the use of organizational tools 124 and 126 asmechanisms for maintaining displayed objects at desired positions whilemanipulations are performed on canvas 127. In them, objects 108, 110,116, and 120 are not attached to either of the organizational tools 124and 126. Consequently, the multi-touch display device 100 treats objects108, 110, 116, and 120 as if they are attached to canvas 127. As such,when the multi-touch display device 100 performs transformations oncanvas 127, the multi-touch display device 100 also may perform the same(or similar) transformations on objects 108, 110, 116, and 120 so as tomaintain the spatial relationships between objects 108, 110, 116, and120 and canvas 127 as the canvas 127 is manipulated.

In FIG. 1D, use 102 is engaging the surface of the multi-touch displaydevice 100 at a point on the canvas 127 (i.e., a point on themulti-touch display device 100 where the multi-touch display device 100is not displaying an object or organizational tool.) As a result, themulti-touch display device 100 detects that user 102 is touching themulti-touch display device 100, interprets this touch as an inputcorresponding to canvas 127 at the contact point, and associates theinput with canvas 127. While continuing to engage the surface of themulti-touch display device 100 with his finger, user 102 may drag hisfinger across the surface of the device to cause the multi-touch displaydevice 100 to translate the canvas 127.

As illustrated in FIG. 1E, user 102 is dragging his finger in a verticaldirection along the surface toward the top of multi-touch display device100. Having already associated the input with canvas 127, themulti-touch display device 100 detects the vertical movement of theuser's finger, from a first point as shown in FIG. 1D to a second pointas shown in FIG. 1E, interprets this input as a request by user 102 totranslate canvas 127 by a distance corresponding to the distance fromthe first point to the second point, and visually translates canvas 127and objects 108, 110, 116, and 120 by the detected distance or somefunction of the distance. Notably, the multi-touch display device 100translates objects 108, 110, 116, and 120 in a manner that is visuallyconsistent with the translation of canvas 127. Thus, objects 108, 110,116, and 120 are moved in a vertical direction (indicated by theillustrated arrows) from original positions 108′, 110′, 116′, and 120′.

In this example, organizational tools 124 and 126 are not associatedwith canvas 127, and, therefore, the multi-touch display device 100holds organizational tools 124 and 126 stationary while translatingcanvas 127 and objects 108, 110, 116, and 120. Preserving the positionsof organizational tools 124 and 126 while translating the canvas 127allows the users 102 and 104 to access various areas of the canvas 127while providing the users 102 and 104 with convenient access to theobjects they have attached to the organizational tools 124 and 126.

In some alternative implementations, the multi-touch display device 100may associate organizational tools 124 and 16 with canvas 127 in amanner similar to objects 108, 110, 116, and 120 such that, whentransformations are applied to the canvas, the multi-touch displaydevice 100 also applies the same (or similar) translations to theorganizational tools 124 and 126 and the objects attached to them. Forexample, when multi-touch display device 100 translates canvas 127,multi-touch display device 100 may translate organizational tools 124and 126, which are associated with canvas 127, by a predetermined factorof the translation applied to canvas 127. In other words, multi-touchdisplay device 100 may translate organizational tools 124 and 126 byhalf of the translation applied to canvas 127. Thus, a user may drag hisfinger from one side of the screen to the other, and multi-touch displaydevice 100 will translate objects 108, 110, 116, and 120 the distancethe user dragged his finger, but will translate organizational tools 124and 126 only half that distance.

The multi-touch display device 100 may provide controls for performingtransformations (e.g., rotate, scale, translate) on organizational tools124 and 126. FIGS. 1F-1J illustrate transformations being applied toorganizational tools 124 and 126.

In FIG. 1F, user 102 has engaged the surface of multi-touch displaydevice 100 at a point corresponding to organizational tool 124 and isdragging his finger along the multi-touch display device 100 in adownward direction. Multi-touch display device 100 detects this input byuser 102, associates the input with organizational tool 124, interpretsthe input as a request to translate organizational tool 124, andtranslates organizational tool 124 as a function of the movement of theuser's finger. Because objects 106, 112, and 114 are attached toorganizational tool 124, multi-touch display device 100 translatesobjects 106, 112, and 114 along with organizational tool 124.

As also illustrated in FIG. 1F, user 104 has engaged the surface ofmulti-touch display device 100 at a point corresponding toorganizational tool 120 and is dragging his finger across themulti-touch display device 100 in a leftward direction. Multi-touchdisplay device 100 detects the input of user 104, associates the inputwith organizational tool 126, interprets the input as a request to moveorganizational tool 126, and translates organizational tool 126 as afunction of the movement of the user's finger. Again, since objects 118and 122 are attached to organizational tool 126, multi-touch displaydevice 100 translates objects 118 and 122 along with organizational tool126. As a consequence, user 104 may interact with multi-touch displaydevice 100 to reposition organizational tool 126 near the particularsection of canvas 127 that he is working with at any given time.

Notably, objects 108, 110, 116, and 118, which are not associated witheither organizational tool 124 or organizational tool 126 remainunaffected by the manipulations illustrated in FIG. 1F.

By enabling user to translate organizational tools 124 and 126, themulti-touch display device provides a user with the ability to keepimportant objects in continued close proximity to the user, even as theuser moves about with relation to the multi-touch display device.

As illustrated in FIGS. 1G-1H, the multi-touch display device 100 mayprovide controls for scaling organizational tools 124 and 126. User 102is engaging the surface of multi-touch display device 100 with twofingers at distinct points along the surface of the multi-touch displaydevice 100, each such point corresponding to a point on the surface oforganizational tool 124. The multi-touch display device 100 detectsthese two concurrent inputs by user 102 and associates them withorganizational tool 124. Likewise, user 104 is engaging the surface ofmulti-touch display device 100 with two fingers at distinct points alongthe surface of the multi-touch display device 100, each such pointcorresponding with a point on the surface of organizational tool 126.The multi-touch display device 190 detects these two concurrent inputsby user 104 and associates them with organizational tool 126.

As illustrated in FIG. 1H, as user 102 drags his fingers toward eachother, multi-touch display device 100 detects the movements of theuser's fingers and interprets it as a request to scale organizationaltool 124. As a result, multi-touch display device 100 scales the size oforganizational tool 124 as a function of the detected movement. Thecloser user 102 drags his fingers together, the smaller multi-touchdisplay device 100 displays organizational tool 124. Because objects106, 112, and 114 are attached to organizational tool 124, multi-touchdisplay device 100 also scales objects 106, 112, and 114 while scalingorganizational tool 124. Therefore, as multi-touch display device 100decreases the size of organizational tool 124, it also decreases thesize of objects 100, 112, and 114 proportionally while maintaining thespatial relationship between objects 106, 112, and 114 on organizationaltool 124.

The multi-touch display device 100 performs a similar process as user104 drags his fingers toward each other along the surface of multi-touchdisplay device 100. Multi-touch display device 100 detects the input ofuser 104, interprets it as a request to scale organizational tool 126,and decreases the visual size of organizational tool 126 as a functionof the detected movement of the user's fingers. Because objects 118 and122 are attached to organizational tool 126, when the multi-touchdisplay device 100 scales organizational tool 126, the multi-touchdisplay device 100 also decreases the size of objects 118 and 122proportionally, while maintaining the spatial relationships betweenobjects 118 and 122 on organizational tool 126.

Scaling organizational tools 124 and 126 may be useful for a number ofreasons. For example, user 102 may prefer to focus on only a few objectsat a time. After attaching the objects that user 102 is not currentlyworking with to organizational tool 124, multi-touch display device 100may minimize organizational tool 124 and provide user 102 with a cleanerand less distracting workspace. Accordingly, multi-touch display device100 may provide a mechanism for minimizing the display of a vast numberof objects while keeping them easily accessible to the user. As soon asthe user wants to access one of the attached objects, multi-touchdisplay device 100 may enable the organizational tool to be increased insize in a comparable manner to the method described above for reducingthe size of organizational tool 124 and 126.

In alternative implementations, the multi-touch display device 100 mayscale the objects attached to organizational tools 124 and 126 withoutaltering the size of organizational tools 124 and 126 themselves. Thus,in FIG. 1H, as user 102 drags his fingers toward each other along thesurface of multi-touch display device 100, multi-touch display device100 may decrease the visual size of objects 106, 112, and 114 withoutchanging the size of organizational tool 124. Such a scaling mechanismmay serve as a convenient way to create more free space on anorganizational tool without scaling the organizational tool itself.

While reducing the size of organizational tools 124 and 126 is oneapproach for minimizing the interference with the users' workspacecaused by organizational tools 124 and 126, one additional oralternative approach is to translate organizational tools 124 and 126 toregions of the canvas 127 where they are not interfering with the workof users 102 and 104. For example, the multi-touch display device 100may enable organizational tools 124 and 126 to be translated topositions on the canvas 127 that are partially or completely outside ofthe visual display of the multi-touch display device 100. FIGS. 1I and1J are illustrative.

In FIG. 1I, user 102 is engaging the surface of multi-touch displaydevice 100 at a point where organizational tool 124 is displayed.Multi-touch display device 100 detects this input by user 102 andassociates the input with organizational tool 124. Similarly, user 104is engaging the surface of multi-touch display device 100 at a pointwhere organizational tool 126 is displayed. Consequently, multi-touchdisplay device 100 detects the input by user 104 and associates theinput with organizational tool 120.

As illustrated in FIG. 1J, multi-touch display device 100 detects thatuser 102 is dragging his finger along the multi-touch display device 100in a downward direction, from a first point as shown in FIG. 1I to asecond point as shown in FIG. 1J, multi-touch display device 100interprets the detected movement as a request to translateorganizational tool 124 by a distance corresponding to the distance fromthe first point to the second point, and, consequently, translatesorganizational tool 124 the detected distance or a function of thedetected distance such that a portion of the organizational tool 124 istranslated to a region of the canvas 127 outside of the visual displayof the multi-touch display device 100. As a result, while organizationaltool 124 continues to exist in its entirety, only a portion oforganizational tool 124 remains visually displayed by the multi-touchdisplay device 100. Because objects 106, 112, and 114 are attached toorganizational tool 124, multi-touch display device translates objects106, 112, and 114 along with organizational tool 124.

The multi-touch display device 100 performs a similar process inresponse to user 104 dragging his finger in a rightward direction alongthe surface of multi-touch display device 100. Multi-touch displaydevice 100 detects the input of user 104, from a first point as shown inFIG. 1I to a second point as shown in FIG. 1J, interprets it as arequest to translate organizational tool 126 by a distance correspondingto the distance from the first point to the second point, and translatesorganizational tool 124 the detected distance or a function of thedetected distance toward the right edge of the surface. Ultimately, themulti-touch display device translates a portion of organizational tool126 to a region of the canvas 127 that is outside of the visual displayof the multi-touch display device 100. Because objects 118 and 122 areattached to organizational tool 126, as the multi-touch display device100 translates organizational tool 126, the multi-touch display devicealso translates objects 118 and 122 along with organizational tool 126.

By enabling organizational tools 124 and 126 to be translated topositions on the canvas 127 that are partially or completely outside ofthe visual display of the multi-touch display device 100, themulti-touch display device 100 may provide a less cluttered workspacefor users 102 and 104. In so doing, multi-touch display device 100 maymore prominently display those objects most pertinent to users 102 and104, while maintaining easy access to those objects attached toorganizational tools 124 and 126.

A variety of different organizational tools may be provided by amulti-touch display device. For example, as discussed above inconnection with FIGS. 1A-1J, a multi-touch display device may provide arectangular two-dimensional organizational tool that enablesmanipulations similar to functionality provided by a cork bulletinboard. Additionally or alternatively, a multi-touch display device mayprovide a one-dimensional, linear organizational tool that enablesmanipulations similar to functionality provided by a clothesline or ashort-order cook ticket line, and/or a multi-touch display device mayprovide a two-dimensional rotary organizational tool that enablesmanipulations similar to functionality provided by a Lazy Susan.

FIGS. 2( a) and 2(b) are illustrations of a multi-touch display device200 providing a one-dimensional organizational tool that enablesmanipulations similar to functionality provided by a clothes line or ashort-order cook ticket line. As illustrated in FIGS. 2( a) and 2(b),organizational tool 224 includes an attachment strip 228 and boundaryhandles 230 and 232. As will be described in greater detail below, theattachment strip 228 provides a mechanism for attaching objects toorganizational tool 224. For example, as illustrated in FIGS. 2( a) and2(b), objects 206, 208, 210, 212, 214, and 216 are attached toorganizational tool 224 via attachment strip 228.

In some implementations, the extent of organizational tool 224 may begreater than the visual display of organizational tool 224. For example,boundary handles 230 and 232 define the boundaries of the visual displayof organizational tool 224, but, as illustrated by the dashed lines inFIGS. 2( a) and 2(b), the extent of organizational tool 224 extendsbeyond boundary handles 230 and 232 even though the visual display oforganizational tool 224 is confined to the region between boundaryhandles 230 and 232.

For example, referring to FIG. 2( a), object 216 is attached toorganizational tool 224 via attachment strip 228, but is not displayedbecause it is attached to the attachment strip 228 of organizationaltool 224 at a position that is outside of the visual display oforganizational tool 224 defined by boundary handles 230 and 232.Similarly, referring to FIG. 2( b), objects 206 and 208 are attached toorganizational tool 224 via attachment strip 228, but not displayedbecause they are attached to the attachment strip 228 of organizationaltool 224 at a position that is outside of the visual display oforganizational tool 224 defined by boundary handles 230 and 232.

In some implementations, attachment strip 228 may be of infinite extent.In alternative implementations, attachment strip 228 may have a finiteextent. In order to enable a user to access portions of organizationaltool 224 that fall outside of the visual display of organizational tool224, multi-touch display device 200 provides controls for translatingattachment strip 228 in a side-to-side fashion. Additionally oralternatively, one or more of boundary handles 230 and 232 can bemanipulated to increase (or decrease) the extent of the visual displayof organizational tool 224, thereby providing access to a larger (orsmaller) number of attached objects.

Referring to FIG. 2( a), a user is engaging the surface of multi-touchdisplay device 200 with a finger 202 at a point corresponding toattachment strip 228. Multi-touch display device 200 detects the inputby the user at point “a” and associates the input with attachment strip228 of organizational tool 224. Referring now to FIG. 2( b), as the userdrags finger 202 to the left across the surface of multi-touch displaydevice 200, multi-touch display device 200 detects the movement of theuser's finger 202 from point “a” to point “b,” interprets the detectedmovement as a request to translate attachment strip 228 by a distancecorresponding to the distance from point “a” to point “b,” andtranslates attachment strip 228 by the detected distance or somefunction of the detected distance. Because objects 206, 208, 210, 212,214, and 216 are attached to organizational tool 200 via attachmentstrip 228, multi-touch display device 200 translates objects 206, 208,210, 212, 214, and 216 along with attachment strip 228. In so doing, themulti-touch display device 200 preserves the spatial relationshipsbetween objects 206, 208, 210, 212, 214, and 216 along the attachmentstrip 228.

As a result of the translation of attachment strip 228, the portion ofthe attachment strip 228 that is located between boundary handles 230and 232 has changed. In particular, the portion of attachment strip 228to which objects 206 and 208 are attached no longer lies within boundaryhandles 230 and 232, while the portion of attachment strip 228 to whichobject 216 is attached now lies within boundary handles 230 and 232.Therefore, multi-touch display device 200 does not display objects 206and 208 anymore but does display object 216.

As discussed above, a multi-touch display device may also provide atwo-dimensional rotary organizational tool. FIGS. 3( a) and 3(b) areillustrations of a multi-touch display device 300 providing atwo-dimensional rotary organizational tool that enables manipulationssimilar to functionality provided by a Lazy Susan. As illustrated inFIGS. 3( a) and 3(b), organizational tool 324 includes an control strip328. As will be described in greater detail below, the control strip 328provides a mechanism for manipulating organizational tool 324. Similarto the control strip described above with regard to the rectangulartwo-dimensional organizational tool, in some implementations, controlstrip 328 will appear on top of objects attached to organizational tool324 in order to provide a convenient way to manipulate organizationaltool 324. For example, as illustrated in FIGS. 3( a) and 3(b), objects306 and 308 are attached to organizational tool 324 and appear undercontrol strip 328.

In certain implementations, multi-touch display device 300 may interpretinput associated with control strip 328 differently from inputassociated with other parts of organizational tool 324. For instance,multi-touch display device 300 may interpret a single, moving inputassociated with a part of organizational tool 324 other than controlstrip 328 as a request to move the entirety of organizational tool 324in correspondence with the detected input, in a fashion similar to thatdiscussed above with regard to FIG. 1F. However, multi-touch displaydevice 300 may interpret a single, moving input associated with thecontrol strip 328 of organizational tool 324 as a request to rotateorganizational tool 324 about its center. An input need not be directlyat a point corresponding to control strip 328 in order for multi-touchdisplay device 300 to associate the input with the control strip 328.Rather, the input may correspond to a point within a predetermineddistance of control strip 328.

Referring to FIG. 3( a), a user is engaging the surface of multi-touchdisplay device 300 with a finger 302 at a point corresponding to controlstrip 328. Multi-touch display device 300 detects the input by the userat point “a” and associates the input with control strip 328 oforganizational tool 324. Referring now to FIG. 3( b), as the user dragsfinger 302 in a counterclockwise fashion across the surface ofmulti-touch display device 300, multi-touch display device 300 detectsthe movement of the user's finger 302 from a point “a” to point “b,”interprets the detected movement as a request to rotate organizationaltool 324, and rotates organizational tool 324 by the detected distanceor some function of the detected distance. Because objects 306 and 308are attached to organizational tool 324, multi-touch display device 300translates objects 306 and 308 along with the rotation of organizationaltool 324 such that objects 306 and 308 retain their position withrespect to organizational tool 324. In so doing, the multi-touch displaydevice 300 also preserves the spatial relationships between objects 306and 308.

Rectangular Two-Dimensional Organizational Tool

The following section describes the rectangular two-dimensionalorganizational tool, described above in FIGS. 1A-1J, in greater detail.In particular, various methods for attaching objects to theorganizational tool, detaching objects from the organizational tool,manipulating the organizational tool, and automatically arrangingobjects attached to the organizational tool will be discussed.

As discussed above, objects can be attached to a rectangulartwo-dimensional organizational tool, for example, for organizationaland/or storage purposes. The multi-touch display device may providevarious different techniques for attaching an object to theorganizational tool.

FIG. 4A is a flowchart 470 of an example of a process for attaching anobject to a rectangular two-dimensional organizational tool. The processillustrated in flowchart 470 may be performed by, for example, themulti-touch display device 100 of FIGS. 1A- 1J, the multi-touch displaydevice 200 of FIGS. 2( a)-2(b), or the multi-touch display device 300 ofFIGS. 3( a)-3(b).

Multiple objects are displayed by a multi-touch display device (472). Inaddition, the multi-touch display device displays an organizational tool(i.e., a target element) to facilitate the organization and/or storageof one or more displayed objects (474).

Next, the organizational tool may be activated, for attachment (476).When the organizational tool is not activated, the multi-touch displaydevice may not permit objects to be attached to the organizational tool.In certain implementations, only when the multi-touch display deviceactivates the organizational tool will the multi-touch display deviceattach objects to the organizational tool. In order to activate theorganizational tool, the multi-touch display device may, for example,detect a predetermined sequence of inputs to a predetermined portion ofthe surface of the multi-touch display device (e.g., detecting an inputto the surface of the multi-touch display device corresponding to adisplayed button or detecting two quick tap inputs to the surface of themulti-touch display device corresponding to the control strip of theorganizational tool being activated). Alternatively, a physical switchlocated either on the multi-touch display device itself or a remotecontrol may be engaged in order for the multi-touch display device toactivate the organizational tool. It is also contemplated that theorganizational tool may always be activated for the purpose of attachingobjects, in which case sub-process 476 need not be performed.

After the organizational tool has been activated for attachment, to theextent necessary, the multi-touch display device detects that an inputmechanism has engaged the surface of the multi-touch display device at apoint corresponding to where the organizational tool or one of thedisplayed objects is displayed (478). In response, the multi-touchdisplay device monitors movement by the input mechanism while the inputmechanism remains engaged with the surface (480).

As the input mechanism moves, the multi-touch display device interpretsthe detected movement as a request to translate the corresponding objector organizational tool, and updates the position of the object ororganizational tool as a function of the detected movement (482). Aslong as the multi-touch display device continues to detect the inputfrom the input mechanism, it will continue to monitor the movement ofthe input mechanism (484). When the multi-touch display device detectsthat the input mechanism has disengaged the surface of the multi-touchdisplay device, the multi-touch display device determines whether thetranslated object overlaps the organizational tool or, in the case wherethe organizational tool is translated, whether any object not alreadyattached to the organizational tool overlaps the organizational tool(486).

If no currently displayed objects visually overlap the organizationaltool, no objects are attached to the organizational tool (488). Incontrast, if one or more displayed objects are determined to beoverlapping the organizational tool, the multi-touch display devicedetermines whether the disengagement of the surface of the multi-touchdisplay device by the input mechanism should trigger an attachment ofthe object(s) overlapping the organizational tool to the organizationaltool (490).

In certain implementations, the determination of whether thedisengagement should trigger an attachment is based on a stored rule orset of rules. For example, a rule may specify that a disengagement ofthe surface while the multi-touch display device concurrently detects anengagement by one or more separate input in a predetermined mannercorresponding to the organizational tool will trigger an attachment ofthe object(s) overlapping the organizational tool to the organizationaltool. Stated differently, the rule may require that the multi-touchdisplay device detect that a user has continuously engaged theorganizational tool through, for example, the control strip concurrentwith an object being dragged over the organizational tool and released.An example of this rule is described in greater detail in connectionwith regard FIG. 4C, below.

Alternatively or additionally, a rule may specify that a disengagementof the surface preceded by an engagement of the surface at a pressuregreater than a predetermined threshold and at a point corresponding towhere the object overlaps the organizational tool will trigger anattachment of the object(s) overlapping the organizational tool to theorganizational tool. Stated differently, the rule may require that themulti-touch display device detect that the user has engaged an object,dragged the object over the organizational tool, and pressed down withincreased pressure on the surface of the multi-touch display devicebefore disengaging the surface. An example of this rule is described ingreater detail with regard to FIG. 4D, below.

Alternatively or additionally, a rule may specify that a disengagementof the surface preceded by an engagement associated with only theorganizational tool and at a pressure greater that a predeterminedthreshold, such that the organizational tool is “pressed below” thelevel of the objects to be attached to the organizational tool, willtrigger an attachment of the object(s) overlapping the organizationaltool to the organizational tool. An example of this rule is described ingreater detail with regard to FIG. 4E, below.

If the multi-touch display device determines that the object(s) thatoverlap the organizational tool should not be attached to theorganizational took, no objects will be attached to the organizationaltool as a result of the disengagement of the surface of the multi-touchdisplay device by the input mechanism. In contrast, if the multi-touchdisplay device determines that the object(s) that overlap theorganizational tool should be attached to the organizational tool, themulti-touch display device invokes a process to attach the object(s)that overlap the organizational tool to the organizational tool suchthat future manipulations applied to the organizational tool also may beapplied to the attached object(s) as a consequence of their attachmentto the organization tool (492).

FIGS. 4B-4E illustrate four variations of attachment process 470. InFIGS. 4B(a), 4C(a), 4D(a), and 4E(a), multi-touch display device 400displays objects 402, 404, 406, and 408 and organizational tool 410.Organizational tool 410 includes control strip 412. Furthermore, object408 has already been attached to organizational tool 410.

In some implementations, the multi-touch display device may require somesort of affirmative action on behalf of a user before attaching anobject to a grouping tool so as to avoid inadvertently attaching anobject when such an attachment is not desired. In such implementations,absent detecting the required affirmative action, the multi-touchdisplay device may not attach an object to the grouping tool even whenthe object is translated to a position overlapping the grouping tool andthen released. Referring to FIG. 4B(b), a user engages the surface ofmulti-touch display device 400 at a point corresponding to object 402,drags finger 403 over the surface, and disengages the surface at a pointwhere object 402 overlaps organizational tool 410.

Multi-touch display device 400 detects this input by finger 403,associates the input with object 402, interprets the input as a requestto translate object 402, and translates object 402 as a function of themovement of the user's finger. In effect, multi-touch display device 400updates the display of object 402 such that the finger 403 appears toremain engaged with the same point on the display even as the finger 403moves about. After detecting the disengagement of finger 403,multi-touch display device 400 determines whether the translated objectvisually overlaps the organizational tool 410. Here, multi-touch displaydevice 400 detects that object 402 overlaps organizational tool 410, andtherefore determines whether the disengagement of finger 403 shouldtrigger an attachment of the object 402 to organizational tool 410. Inthis example, multi-touch display device 400 employs a rule or set ofrules to determine whether an attachment should be made. Additionally,the rule or set of rules have not been met, so multi-touch displaydevice 400 does not attach object 402 to organizational tool 410.

In some implementations, a multi-touch display device may employ anattachment rule whereby the multi-touch display device attaches anobject to an organizational tool in response to detecting that that auser has relinquished control of the object while the object is locatedat a position over the organization tool and while the control strip isengaged by m input mechanism. Referring to FIGS. 4C(a)-4C(b), user 414has engaged the surface of multi-touch display device 400 with finger418 at a point corresponding to organizational tool 410. In addition,while continuing to engage organizational tool 410, user 414 alsoengages the surface of multi-touch display device 400 with finger 416 ata point corresponding to object 402 and drags finger 416 across thesurface of the screen. The multi-touch display device 400 detects themovement of finger 416, and translates object 402 to a point whereobject 402 overlaps organizational tool 410 in response.

Thereafter, finger 416 disengages the surface of the multi-touch displaydevice 400, in response to detecting that finger 410 has disengaged thesurface of multi-touch display device 400, multi-touch display device400 determines whether object 402 is overlapping organizational tool410. As a consequence of detecting that object 402 overlapsorganizational tool 410, multi-touch display device 400 then determineswhether object 402 should be attached to organizational tool 410.Because finger 418 was engaging organizational tool 400 at the time whenfinger 416 relinquished control of object 402 (or within a thresholdperiod of time within the time at which finger 416 relinquished controlof object 402), multi-touch display device 400 determines that object402 should be attached to organizational tool 410. Therefore,multi-touch display device 400 attaches object 402 to organizationaltool 410.

In some implementations, a multi-touch display device may employ anattachment rule whereby the multi-touch display device attaches anobject to an organizational tool in response to detecting that that auser has relinquished control of the object while the object is locatedat a position over the organization tool and after pressing down on thesurface of the multi-touch display device at a point where the objectoverlaps the organizational tool. Referring to FIGS. 4D(a)-4D(b), user414 has engaged the-surface of multi-touch display device 400 withfinger 416 at a point corresponding to object 402 and drags finger 416across the surface of the screen. The multi-touch display device 400detects the movement of 416, and translates object 402 to a point whereobject 402 overlaps organizational tool 410 in response.

Thereafter, finger 416 presses down more firmly on the surface ofmulti-touch display device 400 and then disengages the surface. Inresponse to detecting that finger 416 has disengaged the surface ofmulti-touch display device 400, multi-touch display device 400determines whether object 402 is overlapping organizational tool 410. Asa consequence of detecting that object 402 overlaps organizational tool410, multi-touch display device 400 then determines whether object 402should be attached to organizational tool 410. Because finger 416 morefirmly engaged the surface of multi-touch display device 400 (e.g.,where the absolute contact pressure or the differential in contactpressure between the initial engagement and the pressure when the objectoverlaps organizational tool 410 exceeds a predetermined threshold)before disengaging, multi-touch display device 400 determines thatobject 402 should be attached to organizational tool 410. Therefore,multi-touch display device 400 attaches object 402 to organizationaltool 410.

In some implementations, the multi-touch display device 400 may employan attachment rule that enables objects to be attached to theorganizational tool as a consequence of the translation of theorganizational tool as opposed to the translation of the object(s) to beattached. For example, the multi-touch display device may provide forthe attachment of objects to the organizational tool by enabling a userto depress the organizational tool to a visual layer that is beneath thelayer at which the object is to be attached is displayed and then“dragging” the organizational tool beneath the object to be attached.Referring to FIGS. 4E(a)-4E(d), user 414 has engaged the surface of themulti-touch display device 400 with finger 416 at a point correspondingto organizational tool 410 and drags finger 416 across the surface ofthe screen. The multi-touch display device 400 detects the movement of416, and translates organizational tool 410 to a point where objects402, 404, and 406 overlap organizational tool 410 in response.

In certain implementations, multi-touch display device 400 may detectthat the pressure with which finger 416 has engaged the surface exceedsa predetermined threshold in order to “drag” organizational tool 410beneath objects 402, 404, and 406. If the multi-touch display device 400detects that the pressure does not exceed the threshold, it willtranslate organizational tool 410 such that organizational tool 410overlaps objects 402, 404, and 406, and no attachments will be made. Inother implementations, anytime that organizational tool 410 is engaged,multi-touch display device 400 will “drag” organizational tool 410beneath objects 402, 404, and 406, regardless of contact pressure.

After translating organizational tool 410, finger 416 disengages thesurface of multi-touch display device 400. In response to detecting thatfinger 416 has disengaged the surface of multi-touch display device 400,multi-touch display device 400 determines whether any objects overlaporganizational tool 410. As a consequence of detecting that object 402,404, and 406 overlap organizational tool 410, multi-touch display device400 then determines whether objects 402, 404, and 406 should be attachedto organizational tool 410. Because finger 416 engaged the surface ofmulti-touch display device 400 at a pressure necessary to “drag”organizational tool 410 beneath the objects before disengaging,multi-touch display device 400 determines that objects 402, 404, and 406should be attached to organizational tool 410. Therefore, multi-touchdisplay device 400 attaches objects 402, 404, and 406 to organizationaltool 410.

In some implementations, a multi-touch display device may enable a userto impart motion to a displayed object and, thereafter, the multi-touchdisplay device may maintain the object in motion even after the user hasrelinquished control of the object by disengaging the multi-touchdisplay device. Stated differently, the multi-touch display device mayenable user to “flick” or “fling” an object across the multi-touchdisplay device by initially engaging the surface of the multi-touchdisplay device and then disengaging the surface of the multi-touchdisplay device while the object is in motion. In such implementations,the multi-touch display device may employ an attachment rule whereby themulti-touch display device attaches objects to an organizational toolwhen the multi-touch display device detects that objects originally setinto motion by a user have come to rest over an organizational tool.Furthermore, in such implementations, the multi-touch display device mayapply friction to objects as they move across the multi-touch displaydevice, and, in order to depict the organizational tools as “sticky”surfaces to which the objects can attach, the multi-touch display devicemay apply greater friction to objects as they move over anorganizational tool than when the objects move over the canvas.

FIG. 4F is a flowchart 440 of a process for attaching objects that havebeen set into motion to an organizational tool. The process illustratedto flowchart 440 may be performed by, for example, the multi-touchdisplay device 100 of FIGS. 1A-1J, the multi-touch display device 200 ofFIGS. 2( a)-2(b), the multi-touch display device 300 of FIGS. 3(a)-3(b), or the multi-touch display device 400 of FIGS. 4B-4E.

Multiple objects are displayed by a multi-touch display device (442). Inaddition, the multi-touch display device displays an organizational tool(i.e., a target element) to facilitate the organization and/or storageof one or more displayed objects (444). Moreover, the multi-touchdisplay device defines a coefficient of friction for each of theorganizational tool and the canvas (446). These coefficients of frictionare used to determine the movement of objects across the screen,described in greater detail below. In certain embodiments, themulti-touch display device defines a greater coefficient of friction forthe organizational tool than the canvas in order to simulate thatorganizational tool is “stickier” than the canvas.

Next, the organizational tool may be activated for attachment (448). Themulti-touch display device may activate the organizational tool forattachment utilizing methods similar to those discussed above withregard to step sub-process 476. It is also contemplated that theorganizational tool may always be activated for the purpose of attachingobjects, in which case step sub-process 448 need not be performed.

After the organizational tool has been activated for attachment, to theextent necessary, the multi-touch display device detects that an inputmechanism has engaged the surface of the multi-touch display device at apoint corresponding to where organizational tool or one of the displayedobjects is displayed (450). In response, the multi-touch display devicemonitors movement by the input mechanism while the input mechanismremains engaged with the surface (452).

As the input mechanism moves, the multi-touch display device interpretsthe detected movement as a request to translate the corresponding objector organizational tool, and updates the position of the object ororganizational tool as a function of the detected movement (454). Aslong as the multi-touch display device continues to detect the inputfrom the input mechanism, it will continue to monitor the movement ofthe input mechanism (456). When the multi-touch display device detectsthat the input mechanism has disengaged the surface of the multi-touchdisplay device, the multi-touch display device maintains the motion ofthe object as a function of the motion imparted by the input and thecoefficient of friction of the surface(s) that the object overlaps(458). Stated differently, upon detecting the disengagement, themulti-touch display device continues updating the position of the objectwith the velocity the object had immediately prior to the disengagement,while stowing the velocity of the object based on the coefficient offriction of the surface(s) that the object overlaps. While the object isin motion, the multi-touch display device continuously determines thecoefficient of friction to apply to the motion eased on whether theobject overlaps the canvas and/or the organizational tool. If the objectsolely overlaps either of the canvas or the organizational tool, thecorresponding coefficient of friction is applied. If the object overlapsboth the canvas and the organizational tool, the greater of the twocoefficients of friction is applied.

The multi-touch display device continuously decreases the storedvelocity of the moving object with regard to the applied coefficient offriction, while continuously updating the display of the object withregard to the velocity, until the velocity reaches zero (460). Once theobject comes to rest, the multi-touch display device determines whetherthe translated object visually overlaps the organizational tool (462).If the translated object does not visually overlap the organizationaltool, no objects are attached to the organizational tool (464). Incontrast, if the translated object is determined to be overlapping theorganizational tool, the multi-touch display device determines whetherthe object coming to rest should trigger an attachment of the object(466). In certain implementations, the determination of whether thedisengagement should trigger an attachment is based on a stored rule orset of rules. Rules similar to those discussed above with regard to 470may be utilized.

If the multi-touch display device determines that the object(s) thatoverlap the organizational tool should not be attached to theorganizational tool, no objects will be attached to the organizationaltool as a result of the disengagement of the surface of the multi-touchdisplay device by the input mechanism. In contrast, if the multi-touchdisplay device determines that the object(s) that overlap theorganizational tool should be attached to the organizational tool, themulti-touch display device invokes a process to attach the object(s)that overlap the organizational tool to the organizational tool suchthat future manipulations applied to the organizational tool also may beapplied to the attached object(s) as a consequence of their attachmentto the organization tool (468).

FIGS. 4G-4H illustrate two variations of attachment process 440. InFIGS. 4G(a) and 4H(a), multi-touch display device 400 displays objects402, 404, 406, and 408 and organizational tool 410 on canvas 418. Object408 has already been attached to organizational tool 410.

In some implementations, the multi-touch display device 400 may define agreater coefficient of friction for the organizational tool than for thecanvas in order to simulate that the organizational tool is “stickier”than the canvas. Thus, as an object in motion that has been releasedbegins to overlap the organizational tool, multi-touch display device400 slows the motion of the object at a greater rate, as if the objectwere encountering a stickier surface. Referring to FIG. 4G(b), a userengages the surface of multi-touch display device 400 at a pointcorresponding to object 402, drags finger 416 over the surface, anddisengages the surface at a point where object 402 only overlaps canvas418.

Multi-touch display device 400 detects this input by finger 416,associates the input with object 402, interprets the input as a requestto translate object 402, and translates object 402 as a function of themovement of the user's fingers. In effect, multi-touch display device400 updates the display of object 402 such that the point at which theuser originally engages the object 402 continues to be displayed at thepoint at which the input is currently detected. After detecting thedisengagement of finger 416, multi-touch display device 400 maintainsthe motion of object 402 as a function of the velocity imparted by theinput prior to disengagement and the coefficient of friction of canvas418, which object 402 currently visually overlaps. Thus, multi-touchdisplay device 400 slows object 402 with regard to the definedcoefficient of friction of canvas 418. Referring to FIG. 4G(c), asobject 402 encounters organizational tool 410, beginning to visuallyoverlap it, multi-touch display device 400 begins to update the motionof object 402 with regard to the coefficient of friction oforganizational tool 410, because this coefficient of friction is greaterthan that of the canvas 418. Thus, multi-touch display device 400 slowsobject 402 at an even faster rate.

Referring to FIG. 4G(d), once object 402 has come to rest, multi-touchdisplay device 400 determines whether object 402 visually overlaps theorganizational tool 410. Here, multi-touch display device 400 detectsthat object 402 overlaps organizational tool 410, and thereforedetermines whether object 402 coming to rest should trigger anattachment of the object 402 to organizational tool 410. As describedabove, in certain implementations, multi-touch display device 400employs a rule or set of rules to determine whether an attachment shouldbe made. In this example, the rule to determine whether an attachmentshould be made is simply whether the object overlaps the organizationaltool. Because object 402 overlaps organizational tool 410, multi-touchdisplay device 400 determines that object 402 should be attached toorganizational tool 410. Therefore, multi-touch display device 400attaches object 402 to organizational tool 410.

In some implementations, the multi-touch display device 400 may definean equal coefficient of friction for both the organizational tool andthe canvas. Thus, as an object in motion that has been released beginsto overlap the organizational tool, multi-touch display device 400 willnot change the rate at which the object is slowed. Referring to FIG.4H(b), a user engages the surface of multi-touch display device 400 at apoint corresponding to object 402, drags finger 416 over the surface,and disengages the surface at a point whom object 402 only overlapscanvas 418.

Multi-touch display device 400 detects this input by finger 416,associates the input with object 402, interprets the input as a requestto translate object 402, and translates object 402 as a function of themovement of the user's finger. In effect, multi-touch display device 400updates the display of object 402 such that the point at which the useroriginally engages the object 402 continues to be displayed at the pointat which the input is currently detected. After detecting thedisengagement of finger 416, multi-touch display device 400 maintainsthe motion of object 402 as a function of the velocity imparted by theinput prior to disengagement and the coefficient of friction of canvas418, which object 402 currently visually overlaps. Thus, multi-touchdisplay device 400 slows object 402 with regard to the definedcoefficient of friction of canvas 418. Referring to FIG. 4H(c), asobject 402 encounters organizational tool 410, beginning to visuallyoverlap it, multi-touch display device 400 updates the motion of object402 with regard to the coefficient of friction of organizational tool410. However, because the coefficient of friction of canvas 418 andorganizational tool 410 are the same, multi-touch display device 400slows object 402 at the same rate. In this way, multi-touch displaydevice 400 continues the motion of object 402 for a greater period oftime than would have been the case with regard to FIG. 4G.

Referring to FIG. 4H(d), once object 402 has to come to rest,multi-touch display device 400 determines whether object 402 visuallyoverlaps the organizational tool 410. Because the coefficient offriction does not change between the surfaces, multi-touch displaydevice 400 may continue the motion of object 402 past organizationaltool 410, such that object 402 does not overlap organizational tool 410when it comes to rest. Here, however, multi-touch display device 400detects that object 402 overlaps organizational tool 410, and thereforedetermines whether object 402 coming to rest should trigger anattachment of the object 402 to organizational tool 410. As describedabove, in certain implementations, multi-touch display device 400employs a rule or set of rules to determine whether an attachment shouldbe made. In this example, the rule to determine whether an attachmentshould be made is simply whether the object overlaps the organizationaltool. Because object 402 overlaps organizational tool 410, multi-touchdisplay device 400 determines that object 402 should be attached toorganizational tool 410. Therefore, multi-touch display device 400attaches object 402 to organizational tool 410.

FIG. 5A is a flowchart 500 of an example of a process for detaching anobject from a rectangular two-dimensional organizational tool. Theprocess illustrated in flowchart 500 may be performed by, for example,the multi-touch display device 100 of FIGS. 1A-1J, the multi-touch touchdisplay device 200 of FIGS. 2( a)-2(b) the multi-touch display device300 of FIGS. 3( a)-3(b), or the multi-touch display device 300 of FIGS.4B-4E and 4G-4H.

The multi-touch display device detects that an input mechanism hasengaged the surface of the multi-touch display device at a pointcorresponding to where the organizational tool or one of the displayedobjects is displayed (502). In response, the multi-touch display devicedetermines whether any future movements of the input mechanism shouldtrigger a detachment of the object(s) corresponding to the input (504).

In certain implementations, the determination of whether any futuremovements of the input mechanism should trigger a detachment is basedon. a stored rule or set of rules. For example, a rule may specify thatan initial engagement of the surface corresponding to the organizationaltool or one of the displayed objects while the multi-touch displaydevice concurrently defects an engagement by one or more separate inputsin a predetermined manner corresponding to the organizational tool willtrigger a detachment of the object(s) from the organization tool. Stateddifferently, the rule may require that the multi-touch display devicedetect that a user has continuously engaged the organizational toolthrough, for example, the control strip concurrent with an object beingdragged over the organizational tool and released. An example of thisrule is described in greater detail in connection with regard FIG. 5D,below.

Alternatively or additionally, a rule may specify that corresponding tothe organizational tool at a pressure greater that a predeterminedthreshold, such that the organizational tool is “pressed below” thelevel of the objects attached to the organizational tool, will trigger adetachment of the object(s) attached to the organizational tool. Anexample of this rule is described in greater detail with regard to FIG.5E, below.

If the multi-touch display device determines mat the object(s) attachedto the organizational tool should not be detached from theorganizational tool, no objects will be detached from the organizationaltool as a result of the engagement of the surface of the multi-touchdisplay device by the input mechanism. In contrast, if the multi-touchdisplay device determines that the object(s) attached to theorganizational tool should he detached from the organizational tool, themulti-touch display device monitors the movement of input mechanismwhile the input mechanism remains engaged with the surface (506). Aslong as the multi-touch display device continues to detect the Inputfrom, the input mechanism, it will continue to monitor the movement ofthe input mechanism. Once it detects a predetermined type and amount ofmovement of the input mechanism, the multi-touch display device invokesa process to detach the object(s) attached to the organizational toolsuch that future manipulation applied to the organizational tool willnot be applied to the object(s) as a consequence of their detachmentfrom the organization tool (508).

FIGS. 5B-5F illustrate five variations of detachment process 500. InFIGS. 5B(a), 5C(a), 5D(a), 5E(a), and 5F(a) multi-touch display device510 displays objects 512, 514, 516, and 518 and organizational tool 520.Object 512, 514, 516, and 518 are all attached to organizational tool520.

In some implementations, the multi-touch display device may require somesort of affirmative action on behalf of a user before detaching anobject from an organizational tool so as to avoid inadvertentlydetaching the object when such a detachment is not desired. In suchimplementations, absent detecting the required affirmative action, themulti-touch display device may not detach an object from theorganizational tool even when an input corresponds to the object and ismoved away from the organizational tool. Referring to FIG. 5B(b), a userengages the surface of multi-touch display device 510 at a first pointcorresponding to object 512, and drags finger 522 over the surface, fromthe first point to a second point.

Multi-touch display device 510 detects this input by finger 522 andassociates the input with object 512. After detecting the engagement offinger 522, multi-touch display device 510 determines whether any futuremovements of finger 522 should trigger a detachment of object 512. Inthis example, multi-touch display device 510 employs a rule or set ofrules to determine whether an detachment should be made, however, therule or set of rules have not been met, so multi-touch display device510 does not detach object 512 from organizational tool 520. Becausemulti-touch display device 510 does not detach object 512, multi-touchdisplay device 510 interprets movement of the detected input as arequest to translate object 512 by a distance corresponding to thedistance from the first point to the second point. However, as object512 continues to be attached to organizational tool 520, multi-touchdisplay device 510 will translate organizational tool 520, and any otherobjects attached to it, in correspondence with any translation of object512.

In some implementations, a multi-touch display device may employ adetachment rule whereby the multi-touch display device detaches anobject from an organizational tool in response to detecting that a userhas engaged the object in a predetermined manner. The predeterminedmanner of input may include, for example, a single point engagement ofthe surface of the multi-touch display device at a point correspondingto an attached object, or a predefined series of inputs at apredetermined point on an attached object. Referring to FIGS. 5C(a), auser has engaged the surface of multi-touch display device 510 withfinger 522 at a first point corresponding to object 512. The multi-touchdisplay device 510 detects the input of finger 522, and associates theinput with object 512.

After detecting the engagement of finger 522, multi-touch display device510 determines whether any future movements of the finger 522 shouldtrigger a detachment of object 512. Because finger 522 engages attachedobject 512 as a singular input, multi-touch display device 510determines that object 512 should be detached from organizational tool520. Thereafter, in reference to FIG. 5C(b), the user drags finger 522across the surface of the multi-touch display device 510 in a rightwardmotion from the first point to a second point. In response to detectingthe movement of finger 522, multi-touch display device 510 translatesobject 512 by a distance corresponding to the distance from the firstpoint to the second point. In some implementations, multi-touch displaydevice 510 detaches object 512 from organizational tool 520 whenmulti-touch display device 510 detects that finger 522 disengages thesurface of multi-touch display device 510 and determines that object 512no longer overlaps organizational tool 520. In other implementations,the multi-touch display device 510 detaches object 512 fromorganizational tool 520 when multi-touch display device 510 detects anymovement of linger 522 after determining that the movement shouldtrigger a detachment of object 512.

In some implementations, a multi-touch display device may employ andetachment rule whereby the multi-touch display device detaches anobject from an organizational tool in response to detecting that that auser has engaged the object while the object is attached to theorganization tool and while the control strip is engaged by anotherinput mechanism. Referring to FIGS. 5D(a), a user has engaged thesurface of multi-touch display device 510 with finger 522 at a firstpoint corresponding to organizational tool 520. In addition, whilecontinuing to engage organizational tool 520, the user also engages thesurface of multi-touch display device 510 with finger 524 at a pointcorresponding to object 512. The multi-touch display device 510 detectsthe input of finger 522 and associates it with organizational fool 520,and detects the input of finger 524 and associates it with object 512.

After detecting the engagement of finger 524, multi-touch display device510 determines whether any future movements of the finger 524 shouldtrigger a detachment of object 512. Because finger 522 was engagingorganizational tool 510 at the time when finger 524 engaged object 512(or within a threshold period of time within the time at which finger524 engaged object 512), multi-touch display device 510 determines thatobject 512 should be detached from organizational tool 520. Thereafter,in reference to FIG. 5D(b), the user drags linger 524 across the surfaceof the multi-touch display device 510 in a rightward motion from thefirst point to a second point. In response to detecting the movement offinger 524, multi-touch display device 510 translates object 512 by adistance corresponding to the distance from the first point to thesecond point, and detaches object 512.

In some implementations, the multi-touch display device 510 may employan detachment rule that enables objects to be detached from theorganizational tool as a consequence of the translation of theorganizational tool as opposed to the translation of the object(s) to bedetached. For example, the multi-touch display device may provide forthe detachment of objects from the organizational tool by enabling auser to depress the organizational tool to a visual layer that isbeneath the layer at which the object(s) attached to the organizationaltool are displayed and then “dragging” the organizational tool fromunder the object(s) to be detached. Referring to FIGS. 5E(a), a hasengaged the surface of multi-touch display device 510 with finger 522 ata first point corresponding to organizational tool 520. The multi-touchdisplay device 510 detects the input of finger 522, and associates theinput with organizational tool 520.

After detecting the engagement of finger 522, multi-touch display device510 determines whether any future movements of the finger 522 shouldtrigger a detachment of the objects 512, 514, 516, and/or 518. Incertain implementations, multi-touch display device 510 may detectwhether the pressure with which linger 522 has engaged the surfaceexceeds a predetermined threshold in order to determine if any futuremovements of the finger 522 should trigger a detachment of the objects512, 514, 516, and/or 518, If the multi-touch display device 510 detectsthat the pressure does not exceed the threshold, it may translateorganizational tool 510 without detaching objects 512, 514, 516, and518, and may therefore translate objects 512, 514, 516, and 518 as well.In other implementations, anytime that organizational tool 520 isengaged, multi-touch display device 510 determines, regardless of thedetected pressure, that any future movements of the finger 522 shouldtrigger a detachment of the attached objects.

In this example, because multi-touch display device 510 detects that thepressure exceeds the predetermined threshold, multi-touch display device510 determines that any future detected movements of finger 522 shouldtrigger a detachment of the objects 512, 514, 516, and/or 518.Thereafter, in reference to FIG. 5E(b), the user drags finger 522 acrossthe surface of the multi-touch display device 510 in a rightward motionfrom the first point to a second point. In response to detecting themovement of finger 524, multi-touch display device 510 translatesorganizational tool 520 by a distance corresponding to the distance fromthe first point to the second point. In certain implementations, oncemulti-touch display device 510 detects that finger 522 has disengagedthe surface, multi-touch display device 510 may determine whether anyobjects not already attached to organizational tool 520 overlaporganizational tool 520. If any non-attached objects do overlaporganizational tool 520, multi-touch display device 510 may attach theobjects overlapping organizational tool 520. In other implementations,once multi-touch display device 510 detects that finger 522 hasdisengaged the surface, multi-touch display device 510 will not attachany objects to organizational tool 520, regardless of whether theyoverlap organizational tool 520.

In some implementations, a multi-touch display device may employ andetachment rule whereby the multi-touch display device detachesobject(s) from an organizational tool in response to detecting that thata user has engaged the organizational control at a specific point orregion. Referring to FIGS. 4F(a), a user has engaged the surface ofmulti-touch display device 510 with finger 522 at a point correspondingto organizational tool 520, and more specifically at a pointcorresponding to a predetermined input target or button (e.g., a“Release All” button) on organizational tool 520. Multi-touch displaydevice 510 detects the input of finger 522 and associates it withorganizational tool 520.

After detecting the engagement of finger 522, multi-touch display device510 determines whether the engagement, disengagement, or future movementof finger 522 should trigger a detachment of the objects 512, 514, 516,and/or 518. Because finger 522 engages multi-touch display device 510 ata point corresponding to a “Release All” button, multi-touch displaydevice 510 determines that the engagement of finger 522 should trigger adetachment of all attached objects 512, 514, 516, and 518. Referring toFIG. 5F(b), in certain implementations, as a result of triggering thedetachment of all attached objects from organizational tool 520,multi-touch display device 510 may translate each of objects 512, 514,516, and 518 to a predetermined location where each object does notoverlap organizational tool 520. In such implementations, multi-touchdisplay device 510 may also rotate each detached object such that theangular orientation of each detached object corresponds with the angularorientation of multi -display device 510.

In other implementations, as a result of triggering the detachment ofall attached objects from organizational tool 520, multi-touch displaydevice 510 detaches objects 512, 514, 516, and 518 without translatingeither organizational tool 520 or objects 512, 514, 516, and 518. Stateddifferently, objects 512, 514, 516, and 518 continue to overlaporganizational tool 520, but are not attached to organizational tool 520tor purposes of manipulation of either organizational tool 520 or theobjects themselves.

In additional implementations, as a result of triggering the detachmentof all attached objects from organizational tool 520, multi-touchdisplay device 510 may, as shown in FIG. 5F(c), detach objects 512, 514,516, and 518, and delete organizational tool 520. In such aimplementation, multi-touch display device 510 will continue to display512, 514, 516, and 518 at the positions at which each object wasdisplayed prior to being detached, however organizational tool 520 willno longer be displayed.

As discussed above, one effect of an object being attached to anorganizational tool is that when multi-touch display device appliestransformations to the organizational tool, the multi-touch displaydevice also may apply transformations to the objects attached to theorganizational tool as a consequence of their attachment. However, whenthe multi-touch display device applies a transformation to anorganization tool, the transformations that the multi-touch displaydevice applies to objects attached to the organizational tool may dependupon how the objects are attached to the organizational tool.

In some cases, the multi-touch display device may attach an object to anorganizational tool at only a single point. In such cases,transformations applied to the organizational tool only impact anattached object (i.e., cause a corresponding transformation to beapplied to the atttached object) if the transformations applied to theorganizational tool impact the point upon the organizational tool atwhich the object is attached. Alternatively, in other cases, themulti-touch display device may attach an object to an organization toolat two or more points. In such cases, transformations applied to theorganizational tool will be applied equally to the attached object.

The manner in which all objects are attached to a organizational toolmay be set for a given organizational tool by the user or they may beautomatically preset upon creation by the multi-touch display device.Alternatively, the manner in which objects are attached to aorganizational tool may be detected separately for each object uponbeing attached to the organizational tool.

FIG. 6A illustrates a multi-touch display device performingtransformations to an organizational tool and its attached object whenthe attached objects are attached to the organizational tool at two ormore points. As illustrated in FIG. 6A(a), objects 602, 604, 606, and608 each are attached to organizational tool 610 at two or more points.Therefore, when the multi-touch display device 600 rotatesorganizational tool 610 in response to detecting input by fingers 616and 618 engaging the organizational tool, as shown in FIG. 6A(b), themulti-touch display device 600 corresponding rotates each of displayedobjects 602, 604, 606, and 608 as well.

FIG. 6B illustrates a multi-touch display device performingtransformations to an organizational tool and its attached object whenthe attached objects are attached to the organizational tool at only onepoint. As illustrated in FIG. 6B(a), objects 602, 604, 606, and 608 eachare attached to organizational tool 610 at one point. Therefore, whenthe multi-touch display device 600 rotates organizational tool 610 inresponse to detecting input by fingers 616 and 618 engaging theorganizational tool, as shown in FIG. 6B(b), the multi-touch displaydevice 600 corresponding translates each of displayed objects 602, 604,606, and 608 only with regard to whether and how the rotation oforganizational tool 610 impacts the point upon the organizational tool610 at which objects 602, 604, 606, and 608 are attached.

In some implementations, a multi-touch display device may providecontrols for further organizing objects attached to an organizationaltool provided by the multi-touch display device even after the objectshave been attached to the organizational tool. For example, themulti-touch display device may attach an object to the organizationaltool such that the object is attached to the organizational tool at theposition occupied by the object on the organizational tool at the pointin time when the multi-touch display device determined to attach theobject to the organizational tool irrespective of how many other objectsalso are attached to the organizational tool at the same or similarpositions. Furthermore, the multi-touch display device may preserve theangular orientation of the an object upon attaching the object to anorganizational tool. This may lead to a cluttering of the organizationaltool as more and more objects are attached to the organizational tool.Therefore, the multi-touch display device may provide controls forrearranging the objects attached to an organizational tool into a moreorganized fashion.

FIG. 7A is a flowchart 750 of an example of a process for organizing theobjects attached to a rectangular two-dimensional organizational tool.The process illustrated in flowchart 750 may be performed by, forexample, multi-touch display device 100 of FIGS. 1A-1J, the multi-touchdisplay device 200 of FIGS. 2( a)-2(b), multi-touch display device 300of FIGS. 3( a)-3(b), multi-touch display device 300 of FIGS. 4B-4E and4G-4H, the multi-touch display device 510 of FIGS. 5B-5F, or themulti-touch display device 600 of FIGS. 6A-6B.

The multi-touch display device indentifies a current orientation of areference axis of the organizational tool (752). In someimplementations, the multi-touch display device may determine thereference axis based on a vertical and/or a horizontal axis of theorganizational tool, stored and updated by the multi-touch displaydevice. Alternatively, multi-touch display device may determine thereference axis based on a comparison of multiple predetermined points ofthe organizational tool with regard to multiple predetermined points ofthe display surface of the multi-touch display device. Alternatively,the multi-touch display device may determine the reference axis bydetecting an input from a user indicating the reference axis.

Subsequently, the multi-touch display device identifies a currentorientation of the reference axis of each object attached to theorganizational tool (754). In order to determine the reference axis fora given object, the multi-touch display device may utilize similarmethods as discussed above with regard to determining the reference axisof the organizational tool. Next, the multi-touch display device adjuststhe orientation of each object attached to the organizational tool beingorganized, such that the reference axes of the attached objects alignwith the reference axis of the organizational tool (756). Themulti-touch display device may align the reference axis of a givenobject with the reference axis of the organizational tool by, forexample, rotating the object until the reference axis of the object andthe reference axis of the organizational tool are parallel.Alternatively, the multi-touch display device may, for example, rotatethe object until the reference axis of the object and the reference axisof the organizational tool are offset by a predefined angle.

Referring to FIG. 7B, multi-touch display device 700 partitionsorganizational tool 701 into enough sections to accommodate the numberof attached objects. Multi-touch display device 700 assigns eachattached object a section. As multi-touch display device 700 attaches anew objects multi-touch display device 700 may automatically move thenewly attached object to the closest free section, if one is available.Alternatively, multi-touch display device 700 may give the newlyattached object priority to the closest section, free or not, and if theclosest section is not available, move the object attached in thatsection to the closest free section in order to accommodate the newlyattached object. If in either case, a free section is not available,multi-touch display device 700 may resize all of the objects attached toorganizational tool 701 such that organizational tool 701 may berepartitioned in order to create a free section for all attachedobjects.

FIG. 7B(a) illustrates how multi-touch display device 700 haspartitioned organizational tool 701 into six sections to accommodateobjects 702, 704, 706, 708, and 710. In some implementations, asmulti-touch display device 700 attaches objects to organizational tool701, multi-touch display device 700 maintains the angular orientationthat the objects possessed upon being attached to organizational tool701. Thus, multi-touch display device 700 attaches and displays object702, 704, 706, and 708 at various angles.

Multi-touch display device 700 may also orient all of the objectsattached to organizational tool 701 to correspond with the orientationof the organizational tool 701. Referring to FIG. 7B(b), multi-touchdisplay device 700 may orient each of objects 702, 704, 706, 708, and710 to correspond with the orientation of organizational tool 701, suchthat each of objects 702, 704, 706, 708, and 710 appear with a verticalorientation. In one implementation, the multi-touch display device 700may orient the objects attached to organizational tool 701 by, forexample, determining the vertical axes of organizational tool 701 andobjects 702, 704, 706, 708, and 710, and orienting attached objects 702,704, 706, 708, and 710 such that their vertical axes align with thevertical axis of organizational tool 701. Multi-touch display device 700may also utilize a similar process, except using the horizontal axes oforganizational tool 701 and objects 702, 704, 706, 708, and 710.

In certain implementations, multi-touch display device 700 may causeeach object to be oriented in correspondence with the orientation oforganizational tool 701 upon attaching the object to organizational tool701. In other implementations, multi-touch display device 700 maymaintain the angular orientation that each object possesses upon beingattached to organizational tool 701, as shown in FIG. 7B(a), and thenconcurrently reorient all of attached objects 702, 704, 706, 708, and710 with regard to the orientation of organizational tool 701 upondetecting an input requesting a reorientation, as shown in FIG. 7B(b).

As illustrated in FIG. 7C(a), organizational tool 701 is operating in afree (“messy”) attachment mode such that the multi-touch display device700 preserves the angular orientation of objects upon attaching theobjects to the organizational tool 701. Furthermore, multi-touch displaydevice 700 attaches the objects to the organizational tool 701 at thepositions occupied by the objects at the points in time when themulti-touch display device 700 determines to attach the objects to theorganizational tool 701. Multi-touch display device 700 may display abutton to indicate in which attachment mode organizational tool 701 isoperating. Thus, in FIG. 7C(a), multi-touch display device 700 displaysa “Messy” button in the top right-hand corner of organizational tool701. In the event that the user eventually wishes to organize theobjects that were attached in the free attachment mode, theorganizational tool 701 provides a control to toggle the organizationaltool 701 into an organized (“clean”) attachment mode.

FIG. 7C(b) illustrates a possible result of a transition from a freeattachment mode to an organized attachment mode. Thus, upon detecting aninput from a user indicating a request to implement organized attachmentmode, organizational tool 701 is partitioned into six sections toaccommodate objects 702, 704, 706, 708, and 710. Furthermore, eachobject is assigned to the section closest to where it was originallyattached in the free attachment mode, and is reoriented to correspondwith the orientation of organizational tool 701. While operatingorganizational tool 710 in organized mode, multi-touch display device700 may display a “Clean” button in the top right-hand corner oforganizational tool 701.

FIG. 8A is a flowchart 800 of an example of a process formerging/composing two rectangular two-dimensional organizational tools.The process illustrated in flowchart 800 may be performed by, forexample, the multi-touch display device 100 of FIGS. 1A- 1J, themulti-touch display device 200 of FIGS. 2( a)-2(b), the multi-touchdisplay device 300 of FIGS. 3( a)-3(b), the multi-touch display device300 of FIGS. 4B-4E and 4G-4H, the multi-touch display device 510 ofFIGS. 5B-5F, the multi-touch display device 600 of FIGS. 6A-6B, or themulti-touch display device 700 of FIGS. 7A-7B.

The multi-touch display device displays multiple organizational toolsand monitors the position of each organizational tool (802). When themulti-touch display device manipulates one or more organizational tools,the multi-touch display device determines whether the translatedorganizational tool overlaps any other organizational tool(s) (804). Ifthe multi-touch display device determines that the translatedorganizational tool does not overlap any other organizational tool(s),the multi-touch display device continues to monitor the position of eachorganizational tool. In contrast, when the multi-touch display devicedetermines the translated organizational tool does overlap anorganizational tool, multi-touch display device merges or composes thetranslated organizational tool with the overlapped organizationaltools(s) (806).

In certain implementations, the multi-touch display device will composethe overlapping organizational tool with the overlapped organizationaltool. To compose two or more overlapping organizational tools, themulti-touch display device, in effect, attaches the overlappingorganizational tool to the overlapped organizational tool, similar tothe way previously described multi-touch display devices attach anobject to an organizational tool. When multi-touch display device 810composes two or more organizational tools, multi-touch display device810 maintains the existence of each of the organizational tools, butcreates a relationship between them. Thus, because multi-touch displaydevice 810 maintains the existence of each of the organizational tools,multi-touch display device 810 may separate two or more composedorganizational tools.

FIG. 8B illustrates a multi-touch display device composing twooverlapping organizational tools and detaching two composedorganizational tools. Referring to FIG. 8B(a), multi-touch displaydevice 810 displays object 812 as attached to organizational tool 814,and objects 816, 818, and 820 as attached to organizational tool 822. Asillustrated in FIG. 8B(b), a user has engaged the surface of multi-touchdisplay device 810 with finger 820 at a point corresponding toorganizational tool 822 and drags finger 826 across the surface of thescreen. The multi-touch display device 810 detects the movement offinger 826, and translates organizational tool 822 to a point whereorganizational tool 822 overlaps organizational tool 814 in response. Inthis example, determining that organizational tool 822 overlapsorganizational tool 814, multi-touch display device 810 composesorganizational tool 822 with organizational tool 814. Thereafter,because organizational tool 822 is composed with organizational tool814, multi-touch display device 810 translates organizational tool 822along with organizational tool 814.

FIGS. 8B(c)-8B(d) illustrate transformations being applied toorganizational tool 814. In FIG. 8B(c), a user has engaged the surfaceof multi-touch display device 810 with finger 826 at a pointcorresponding to organizational tool 814 and is dragging his fingeralong the multi-touch display device 810 in a rightward direction from afirst point, as shown in FIG. 8B(c), to a second point, as shown in FIG.8B(d). Multi-touch display device 810 detects this input by finger 826,associates the input with organizational tool 814, interprets the inputas a request to translate organizational tool 814 by a distancecorresponding to the distance from the first point to the second point,and translates organizational tool 814 by the detected distance of somefunction of the detected distance. Furthermore, because organizationaltool 822 is composed with organizational tool 814, organizational tool822, multi-touch display device 810 translates organizational tool 822along with organizational tool 814, as shown in FIG. 8B(d).

FIGS. 8B(e)-8B(f) illustrate transition of an object between twocomposed organization tools. In FIG. 8B(e), a user has engaged thesurface of multi-touch display device 810 with ringer 826 at a firstpoint corresponding to object 818. Multi-touch display device 810detects the input of finger 826, associates the detected input withobject 818, and determines whether any future movement of the detectedinput should trigger the detachment of object 818 from organizationalfool 822. In this example, multi-touch display device 810 determinesthat future movement of the detected input should trigger the detachmentof object 818.

Thereafter, as shown in FIG. 8B(f), the user drags finger 826 upward,from the first point to a second point, and disengages the surface ofmulti-touch display device 810. In response to detecting the movement offinger 826, multi-touch display device 810 translates object 818 by adistance corresponding to the distance from the first point to thesecond point, and detaches object 818 from organizational tool 822.However, in response to detecting that finger 826 has disengaged thesurface of multi-touch display device 810, multi-touch display device810 determines whether object 818 is overlapping any of the displayedorganizational tools. As a consequence of detecting that object 818overlaps organizational tool 814, multi-touch display device 810 thendetermines whether object 818 should be attached to organizational tool814. In this example, multi-touch display device 810 determines thatobject 818 should be attached to organizational tool 814. Therefore,multi-touch display device 810 attaches object 818 to organizationaltool 814.

Once stated differently, multi-touch display device 810 has ceased therelationship between object 818 and organizational tool 822, but createda relationship between object 818 and organizational tool 814. Thus, asshown in FIGS. 8B(g)-8B(h), if organizational tool 822 is transformed,apart front organizational tool 814, multi-touch display device 810 willnot apply any corresponding transformations to object 818. In FIG.8B(g), a user has engaged the surface of multi-touch display device 810with finger 826 at a first point corresponding to organizational tool822. Multi-touch display device 810 detects the input of finger 826,associates the detected input with organizational tool 822, anddetermines whether any future movement of the detected input shouldtrigger the detachment of organizational tool 822 from organizationaltool 814. In this example, multi-touch display device 810 determinesthat future movement of the defected input should trigger the detachmentof organizational tool 822.

Thereafter, as shown in FIG, 8B(h), the user drags finger 826 leftwardacross the surface of multi-touch display device 810 from the firstpoint to a second point. In response to detecting the movement of finger826, multi-touch display device 810 translates organizational tool 822 adistance corresponding to the distance from the first point to thesecond point and detaches organizational tool 822 from organizationaltool 814. Because multi-touch display device has detached object 818from organizational tool 822, and subsequently attached object 818 toorganizational fool 814, the translation of organizational tool 822 mayhave no visual effect on object 818.

In other implementations, the multi-touch display device will merge theoverlapping organizational tool with the overlapped organizational tool.To merge two or more overlapping organizational tools, the multi-touchdisplay device, in effect, dissolves the overlapping organizational toolinto the overlapped organizational tool, such that the objects attachedto the overlapping organizational tool are then attached to theoverlapped organizational tool in a similar manner. When multi-touchdisplay device 810 merges two or more organizational tools, multi-touchdisplay device 810 deletes the overlapping organizational tool(s). Thus,because multi-touch display device 810 deletes the overlappingorganizational tool(s), multi-touch display device 810 cannot separatemerged organizational tools. Instead, multi-touch display device 810provides the capability of splitting the overlapped organizational toolinto multiple organizational tools.

FIG. 8C illustrates a multi-touch display device merging two overlappingorganizational tools and splitting the single, merged organizationaltool into multiple separate organizational tools. Referring to FIG.8C(a), multi-touch display device 810 object 812 attached toorganizational tool 814, and objects 816, 818, and 820 to organizationaltool 822. As illustrated in FIG. 8C(b), a user has engaged the surfaceof multi-touch display device 810 with finger 826 at a pointcorresponding to organizational tool 822 and drags finger 826 across thesurface of the screen. The multi-touch display device 810 detects themovement of finger 826, and translates organizational tool 822 to apoint where organizational tool 822 overlaps organizational tool 814 inresponse. In this example, determining that organizational tool 822overlaps organizational tool 814, multi-touch display device 810 mergesorganizational tool 822 with organizational tool 844. As illustrated inFIG. 8C(c), because organizational tool 822 is merged withorganizational tool 814, multi-touch display device 810 deletesorganizational tool 822, and attaches objects 816, 818, and 820 toorganizational tool 814 in the same manner in which they were attachedto organizational tool 822.

In certain instances, a user may desire to split organizational tool 814into multiple separate organizational tools. In order to separateorganizational tool 814, multi-touch display device 810 may determine agroup of objects to separate front organizational tool 814, and, in someinstances, attach to a new, separate organizational tool. By separatinga group of objects from organizational tool 814 concurrently,multi-touch display device 810 is providing a more efficient method thanfirst creating a new organizational tool, followed by individuallydetaching each desired object from organizational tool 814 and attachingit to the new organizational tool.

FIG. 8C(d) illustrates one example of how multi-touch display device 810may determine which objects to include in the group to be separated fromorganizational tool 814. A user has engaged the surface of multi-touchdisplay device 810 with finger 826 at a point corresponding toorganizational tool 814. Multi-touch display device 810 defects theinput of finger 826, associates the detected input with organizationaltool 814, and interprets the input as a request to separateorganizational fool 814. The user drags finger 826 in a circle around aportion of organizational tool 814. in order to provide the user avisual indication of what portion of organizational tool 814 the userhas selected, multi-touch display device 810 displays an annotation 830corresponding to where the input of finger 826 has been detected.

FIGS. 8C(e)-8C(i) illustrate three variations of separatingorganizational tool 814 and/or objects attached to organizational tool814. In some implementations, multi-touch display device 810 may detectthe input from finger 826, and select those objects attached toorganizational tool 814 that come in contact or are interior to thedetached circular input. Stated differently, multi-touch display device810 selects the objects 812, 818, and 820 that have been “lassoed” bythe detected input, displayed as annotation 830.

With reference to FIG. 8C(e)-8C(g), in certain implementations, finger826 may disengage the surface of multi-touch display device 810 aftercompleting the desired selection. Therefore, after an initialdisengagement of the detected input, the multi-touch display device 810maintains the display of annotation 830 and the selection of objects812, 818, and 820, while monitoring for a subsequent input directingmulti-touch display device 810 what to do with selected objects 812,818, and 820. Thus, in FIG. 8C(e), finger 826 engages the surface ofmulti-touch display device 810 at a first point internal to the visualboundaries of annotation 830. multi-touch display device 810 detects theinput, and associates it with the selected objects 812, 818, and 820 andannotation 830.

In FIG. 8C(f), as the user drags finger 826 rightward across the surfaceof organizational tool 810, from the first point to a second point,multi-touch display device 810 detects the movement of finger 826, andtranslates the selected objects 812, 818, and 820 and annotation 830 adistance corresponding to the distance from the first point to thesecond point, where objects 812, 818, and 820 and annotation 830 do notoverlap organizational tool 814. Referring to FIG. 8C(g), once finger826 disengages the surface, the multi-touch display device 810 creates anew organizational tool 832 of a proper size and shape and at a properposition to accommodate the selected objects. Once organizational tool832 has been created, multi-touch display device 810 attaches selectedobjects 812, 818, and 820 to organizational tool 832. Concurrently, upondetecting the disengagement of finger 826, multi-touch display device810 deletes annotation 830.

Alternatively, in FIG. 8C(h), upon detecting an initial disengagement offinger 826 after objects 812, 818, and 820 have been visually “lassoed,”multi-touch display device 810 creates a new organizational tool 834 ofa proper size and shape to accommodate selected objects 812, 818, and820 at the point where objects 812, 818, and 820 have been visually“lassoed.” In certain implementations, multi-touch display device 810resizes organizational tool 814 so as to only occupy the space necessaryto display the object 810, which was not selected. In otherimplementations, multi-touch display device 810 deletes organizationaltool 814 altogether and creates another new organizational tool of aproper size and shape to accommodate non-selected object 810.

Alternatively, in FIG. 8C(i), upon detecting an initial disengagement offinger 826 after objects 812, 818, and 820 have been visually “lassoed,”multi-touch display device 816 detaches the selected objects 812, 818,and 820 from organizational tool 814 and resizes organizational tool 814so as to only occupy the space necessary to display the object 816,which was not selected.

FIG. 9 illustrates an alternative implementation of the rectangulartwo-dimensional organizational tool. In this alternative implementation,the rectangular two-dimensional organizational tool may be implementedas a window through the canvas that provides a view into anorganizational tool situated beneath (or behind) the canvas. In such animplementation, not only might the canvas be infinite workspace (or atleast have an extent that is larger than the visual display of themulti-touch display device), but the organizational tool might provide asecondary, embedded infinite workspace (or at least have an extent thatis larger than the visual display of the multi-touch display device). Ineffect, the multi-touch display device would operate as if there weretwo layers, wherein a lower layer further from the surface of themulti-touch display device may include the organizational tool and ahigher layer closer to the surface of the multi-touch display device mayinclude a canvas and a window through which to view the organizationaltool.

FIG. 9( a) illustrates a multi-touch display device 900 displayingobjects 902 and 904 associated with canvas 906. Multi-touch displaydevice 900 also displays organizational tool 908 and objects 910 and 912attached to organizational tool 914. Canvas 906, and therefore objects902 and 904, and window 908, is on top of, or visually closer to thesurface of multi-touch display device 900 than organizational tool 914.Canvas 906 can be manipulated similar to any of the other canvassesdescribed previously. Thus, canvas 906 may be shifted or resized, andobjects 902 and 904, being associated with canvas 906. will becorrespondingly shifted and resized. However, any manipulations ofcanvas 906, or the objects associated with it, may not affectorganizational tool 914, or the objects attached to it. Furthermore,manipulations of canvas 906 may or may not affect the size and positionof window 908.

Window 908 effectively provides a transparent area through whichorganizational tool 914 may be viewed and manipulated. Organizationaltool 914 can be manipulated similar to any of the other organizationaltools described previously. Thus, organizational tool 914 may be shiftedor resized, and objects 910, 912, 920, and 922, being attached toorganizational tool 914, will be correspondingly shifted and resized.However, only that area of organizational tool 914 directly “under”window 908 will be displayed by multi-touch display device 900. As aresult, in FIG. 9( a), objects 920 and 922, are not displayed bymulti-touch display device 900, because they are below canvas 906, whichmay be effectively opaque.

If a user wishes to view another portion of organizational tool 918, hemay engage organizational tool 918 through window 908. For example,referring to FIG. 9( a), a user has engaged the surface of multi-touchdisplay device 900 with finger 926 at a first point corresponding towindow 908, and thus organizational tool 918. Multi-touch display device900 detects the input of finger 926, associates the input withorganizational tool 918. Referring to FIG. 9( b), as the user dragsfinger 926 across the multi-touch display device 900 in a leftwarddirection, from the first point to a second point, multi-touch displaydevice 900 interprets the input as a request to translate organizationaltool 918 by a distance corresponding to a distance from the first pointto the second point, and translates organizational tool 918 by thedetected distance or a function of the detected distance. Again, sinceobjects 910, 912, 920, and 922 are attached to organizational tool 918,multi-touch display device 900 translates objects 910, 912, 920, and 922along with organizational tool 918.

However, multi-touch display device 900 only displays that are oforganizational tool 918 directly underneath window 908. Thus, asorganizational tool 918 and objects 910, 912, 920, and 922 aretranslate, multi-touch display device 900 begins displaying objects 920and 922 while ceasing to display object 910. Furthermore, since canvas906 exists separately from organizational tool 918, these manipulationsperformed on the organizational tool 918 will not affect canvas 906 orthe object associated with it. Thus, canvas 906 and objects 902 and 904remain unchanged from FIG. 9( a) to FIG. 9( b).

Likewise, a user may wish to change the scale of organizational tool918. Referring to FIG. 9( c), a user has engaged the surface ofmulti-touch display device 900 with finger 926 and thumb 928 at a pointscorresponding to window 908, and thus organizational tool 918.Multi-touch display device 900 concurrently detects the inputs of finger926 and thumb 928, and associates the inputs with organizational tool918. Referring to FIG. 9( d), as the user drags finger 926 and thumb 928away from each other across the multi-touch display device 900,multi-touch display device 900 interprets the input as a request toscale organizational tool 918, and scales the size of organizationaltool 918 as a function of the movement of finger 926 and thumb 928.Again, since objects 910, 912, 920, and 922 are attached toorganizational tool 918, multi-touch display device 900 scales objects910, 912, 920, and. 922 along with organizational tool 918.

Again, multi-touch display device 900 only displays that area oforganizational tool 918 directly underneath window 908. Thus, asorganizational tool and objects 910, 912, 920, and 922 are scaled,multi-touch display device 900 displays objects 920 and 922 larger whileceasing to display object 912. Furthermore, since canvas 906 existsseparately horn organizational tool 918, these manipulations performedon the organizational tool 918 will not affect canvas 906 or the objectsassociated with it. Thus, canvas 906 and objects 902 and 904 remainunchanged from FIG. 9( c) to FIG. 9( d).

One-Dimensional Linear Organizational Tool

As described above in connection with FIGS. 2( a)-2(b), a multi-touchdisplay device may provide a one-dimensional linear organizational toolthat enables manipulations similar to functionality provided by aclothes line or a short-order cook ticket line.

FIG. 10 is a diagram of a multi-touch display device that provides aone-dimensional linear organizational tool that illustrates techniquesfor attaching objects to the one-dimensional linear organizational tool.In this example, multi-touch display device 1000 displays objects 1002,1004, 1006, 1008, 1010, 1012, and 1014 and organizational tool 1016.Organizational tool 1016 includes an attachment strip 1018 and boundaryhandles 1020 and 1022. As described above, the extents of organizationaltool 1016 and attachment strip 1018 may be greater than the visualdisplay of organizational tool 1016. Boundary handles 1020 and 1022define the boundaries of the visual display of organizational tool 1016,but the extent of organizational tool 1016 extends beyond boundaryhandles 1020 and 1022, even though the visual display of organizationaltool 1016 is confined to the region between boundary handles 1020 and1022. In effect, the greater extents of organizational tool 1016 andattachment strip 1018 allow for “off-screen” storage, such thatmulti-touch display device 1000 may reduce the area used to displayorganizational tool 1016 while, at the same time, preserving easy accessto the objects attached to the organizational tool.

As illustrated in FIG. 10( a), objects 1004-1014 are attached toorganizational tool 1016 through attachment strip 1018. Object 1002,meanwhile, remains unattached.

In FIG. 10( a), a user is engaging the surface of multi-touch displaydevice 1000 with finger 1026 at a first point corresponding to object1002. Multi-touch display device 1000 detects the input of finger 1026and associates the detected input with object 1002.

Referring to FIG. 10( b), as the user drags finger 1026 across thesurface from the first point to a second point, multi-touch displaydevice 1000 detects the position of the finger 1026 and continuouslyupdates the display of object 1002 to correspond with the detectedposition of finger 1026. Eventually, as a result of the detected motionof finger 1026, the multi-touch display device 1000 translates object1002 by a distance corresponding to the distance from the first point tothe second point, a position beneath attachment stripe 1018.

Subsequently, the user disengages finger 1026 from the surface of themulti-touch display device 1000, and the multi-touch display devicedetects that user 1024 has disengaged finger 1026 from the surface ofthe multi-touch display device 1000. In response, the multi-touchdisplay device determines whether object 1002 visually overlapsattachment strip 1018. Since object 1002 does visually overlapattachment strip 1018, multi-touch display device 1000 determineswhether the disengagement of object 1002 triggers attachment of object1002 to organizational tool 1016.

In certain implementations, the determination of whether thedisengagement should trigger an attachment is based on a stored rule orset of rules. For example, a rule may specify that a disengagement ofthe surface while multi-touch display device 1000 concurrently detects aseparate, continuous engagement of attachment strip 1018 will trigger anattachment of object 1002 to the organizational tool 1016. Alternativelyor additionally, a rule may specify that a disengagement of the surfacepreceded by an engagement of the surface at a pressure greater that apredetermined threshold and at a point corresponding to where object1002 overlaps the attachment strip 1018 will trigger an attachment ofobject 1002 to the organizational tool 1016. In this example, becausefinger 1026 disengaged the surface of multi-touch display device 1000 ata point corresponding to attachment strip 1018, multi-touch displaydevice 1000 determines that object 1002 should be attached toorganizational tool 1016. Therefore, multi-touch display device 1000attaches object 1002 to organizational tool 1016.

FIG. 11 is a diagram of a multi-touch display device that provides aone-dimensional linear organizational tool that illustrates techniquesfor detaching objects from the one-dimensional linear organizationaltool. In this example, multi-touch display device 1100 displays objects1102, 1104, 1106, 1108, 1110, and 1112 and organizational tool 1116.Organizational tool 1116 includes an attachment strip 1118.

Referring to FIGS. 11( a), a user has engaged the surface of multi-touchdisplay device 1100 with finger 1126 at a first point corresponding toobject 1102. The multi-touch display device 1100 detects the input offinger 1126, and associates the input with object 1102.

After detecting the engagement of finger 1126, multi-touch displaydevice 1100 determines whether any future movements of the finger 1126should trigger a detachment of object 1102. In this example, multi-touchdisplay device 1100 determines that object 1102 should be detached fromorganizational tool 1116. Thereafter, in reference to FIG. 11( b), theuser drags finger 1126 across the surface of the multi-touch displaydevice 1100 in a downward motion from the first point to a second point.In response to detecting the movement of finger 1126, multi-touchdisplay device 1100 translates object 1102 by a distance correspondingto the distance from the first point to the second point. In someimplementations, multi-touch display device 1100 detaches object 1102from organizational tool 1116 when multi-touch display device 1100detects that finger 1126 disengages the surface of multi-touch displaydevice 1100 and determines that object 1102 no longer overlapsorganizational tool 1116, as shown in FIG. 11( c).

As described above, a multi-touch display device may automaticallyadjust the angular orientation of an object upon attaching the object toan organizational tool. For example, in one implementation, themulti-touch display device may automatically adjust the angularorientation of an object upon attaching the object to the multi-touchdisplay device such that the angular orientation of the object isconsistent with the angular orientation of objects already attached tothe organizational tool, irrespective of the angular orientation of theorganizational tool itself. Alternatively, the multi-touch displaydevice may automatically adjust the angular orientation of an objectupon attaching the object to the multi-touch display device such thatthe angular orientation of the object is consistent with the angularorientation of the organizational tool itself.

FIG. 12A is a flowchart 1250 of an example of a process tor organizingobjects attached to a linear one-dimensional organizational tool. Theprocess illustrated in flowchart 1250 may be performed by, for example,the multi-touch display device 1000 of FIGS. 10( a)-10(b) or themulti-touch display device 1100 of FIGS. 11( a)-11(c).

The multi-touch display device displays an organizational tool and oneor more objects (1252), and defines a reference axis for attachingobjects to the organizational tool (1254). The multi-touch displaydevice continuously determines whether the one or more objects beingdisplayed should he attached to the organizational tool (1256). Themulti-touch touch display device may make the attachment determinationin a manner similar to those discussed above with regard to FIGS. 4A-4Gand 10(a)-10(b).

If the multi-touch display device determines that one or more of thedisplayed objects should be attached to the organizational tool, themulti-touch display device identifies the reference axis of each objectto be attached to the organizational tool (1268). In someimplementations, the multi-touch display device may determine thereference axis based on a vertical and/or horizontal axis of the object,stored and updated by the multi-touch display device. Alternatively, themulti-touch, display device may determine the reference axis based on acomparison of multiple predetermined points of the object with regard tomultiple predetermined points of the display surface of the multi-touchdisplay device. Alternatively, the multi-touch display device determinethe reference axis by detecting an input from a user indicating thereference axis. The multi-touch display device identifies the definedreference axis for attaching objects to the organizational tool (1260).

Next, the multi-touch display device adjusts the orientation, of eachobject that is being attached to the organizational tool, such that thereference axes of the attached objects align with the defined referenceaxis for attaching objects to the organizational tool (1262). Once themulti-touch display device adjusts the object(s), the multi-touchdisplay device attaches the object(s) to the organizational tool (1264).

FIGS. 12B and 12C are diagrams of a multi-touch display device thatillustrate two different examples the multi-touch display deviceautomatically adjusting the angular orientation of an object uponattaching the objects to a one-dimensional linear organizational tool.In these figures, multi-touch display device 1200 displays objects 1202,1204, and 1206 and organizational tool 1216. Organizational tool 1216includes an attachment strip 1218 and boundary handles 1220 and 1222.Objects 1204 and 1206 are attached to organizational tool 1216 throughattachment strip 1218.

Referring to FIG. 12B(a), object 1204 and object 1206 are attached tothe one-dimensional linear organizational tool such that their angularorientations are consistent with one another, but not necessarily withthe angular orientation of the one-dimensional linear organizationaltool. Stated differently, the vertical and horizontal axes of each ofobjects 1204 and 1206 are consistent relative to one another, but areat, for example, approximately a 45-degree angle with respect to thevertical and horizontal axes of organizational tool 1216.

As illustrated in the sequence of FIGS. 12B(a)-12B(c), when themulti-touch display device 1200 attaches object 1202 to theone-dimensional organizational tool 1216, the multi-touch display deviceautomatically adjusts the angular rotation of object 1202 such that itis consistent with the angular orientation of objects 1204 and 1206, butnot necessarily with the angular orientation of the one-dimensionallinear organizational tool. To adjust the angular rotation of object1202, multi-touch display device 1200 may, for example, determine thevertical and/or horizontal axes of object 1202, determine the verticaland/or horizontal axes of objects 1204 and/or 1206, and rotate object1202 such that its vertical and/or horizontal axes align with thevertical and/or horizontal axes of objects 1204 and/or 1206.

Referring to FIG. 12C(a), object 1204 and object 1206 are attached tothe one-dimensional linear organizational tool such that their angularorientations are consistent with one another, and with the angularorientation of the one-dimensional linear organizational tool. Stateddifferently, the vertical and horizontal axes of each of objects 1204and 1206 are both consistent with the vertical and horizontal axes oforganizational tool 1216.

As illustrated in the sequence of FIGS. 12C(a)-12C(c), when themulti-touch display device 1200 attaches object 1202 to theone-dimensional organizational tool 1216, the multi-touch display deviceautomatically adjusts the angular rotation of object 1202 such that itis consistent with the angular orientation of objects 1204 and 1206, andwith the angular orientation of the one-dimensional linearorganizational tool. To adjust the angular rotation of object 1202,multi-touch display device 1200 may, for example, determine the verticaland/or horizontal axes of object 1202, determine the vertical and/orhorizontal axes of organizational tool 1216, and rotate object 1202 suchthat its vertical and/or horizontal axes align with the vertical and/orhorizontal axes of organizational tool 1216.

As discussed above, one effect of an object being attached to anorganizational tool is that when the multi-touch display device appliestransformations to the organizational tool the multi-touch displaydevice also may apply transformations to the objects attached to theorganizational tool as a consequence of their attachment. However, whenthe multi-touch display device applies a transformation to anorganization tool, the transformations that the multi-touch displaydevice applies to objects attached to the organizational tool may dependupon how the objects are attached to the organizational tool.

In some cases, the multi-touch display device may attach an object to anorganizational tool at only a single point. In such cases,transformations applied to the organizational tool only impact anattached object (i.e., cause a corresponding transformation to beapplied to the attached object) if the transformations applied to theorganizational tool impact the point upon the organizational tool atwhich the object is attached.

The manner in which all objects are attached to a organizational toolmay be set for a given organizational tool by the user or they may beautomatically preset upon creation by the multi-touch display device.Alternatively, the manner in which objects are attached to aorganizational tool may be detected separately for each object uponbeing attached to the organizational tool.

FIG. 13 illustrates a multi-touch display device performingtransformations to a one-dimensional linear organizational tool and itsattached objects when the attached objects are attached to theorganizational tool at only one point. As illustrated in FIG. 13( a),objects 1302, 1304, and 1306 each are attached to organizational tool1316 through attachment strip 1318 at one point. Therefore, when themulti-touch display device 1300 rotates organizational tool 1316 inresponse to detecting input by fingers 1326 and 1328 engaging theorganizational tool, as shown in FIG. 13( b), the multi-touch displaydevice 1300 corresponding translates each of displayed objects 1302,1304, and 1306 only with regard to whether and how the rotation oforganizational tool 1316 impacts the point upon the attachment strip1318 at which objects 1302, 1304, and 1306 are attached. Thus, in FIG.13( c), multi-touch display device 1300 has translated the position ofobjects 1302, 1304, and 1306 with regard to the point at which each isconnected to attachment strip 1318, while maintaining the angularorientation (illustrated by the consistent x and y axes next to eachobject) of objects 1302, 1304, and 1300.

Alternative manners of attaching objects to organizational tool 1316also may be employed. For example, objects may be attached toorganizational tool 1316 at two or more points as opposed to a singlepoint as illustrated in FIGS. 13( a)-13(c).

As discussed above, the extent of a one-dimensional linearorganizational tool provided by a multi-touch display device may begreater than the visual display of the one-dimensional linearorganizational tool itself. In such implementations, a preview screenmay be provided by the multi-touch display device to provide a glimpseinto the regions of the one-dimensional linear organizational tool thatexist beyond the boundaries of the visual display of the one-dimensionallinear organizational tool. Such a preview screen may serve to alert auser to (or remind the user of) the existence of objects attached to theone-dimensional linear organizational tool beyond the visual boundariesof the one-dimensional linear organizational tool. In addition, thepreview screen also may portray to a user the spatial relationshipsbetween the objects attached to the one-dimensional linearorganizational tool, whether or not the objects are within theboundaries of the visual display of the one-dimensional linearorganizational tool, thereby providing the user with an indication ofhow far away certain objects attached to the one-dimensional linearorganizational tool are from the region of the one-dimensional linearorganizational tool currently within the boundaries of the visualdisplay of the one-dimensional linear organizational tool.

FIG. 14A is illustrative. FIG. 14A(a) is a schematic diagram of aone-dimensional linear organizational tool 1424. As illustrated in FIG.14A(a), the one dimensional linear organizational tool 1424 includes anattachment strip 1428 and objects 1402, 1404, 1406, 1408, 1410, 1412,1414, 1416, 1418, 1420, and 1422 are attached to the one-dimensionallinear organizational tool via attachment strip 1428. Dashed box 1442represents the region of the one-dimensional linear organizational tool1424 that is displayed on the multi-touch display device. As illustratedin FIG. 14A(a), the extent of the one-dimensional linear organizationaltool 1424 extends beyond the boundaries of the visual display of theone-dimensional linear organizational tool 1424. In particular, theone-dimensional linear organizational tool 1424 has a region to the leftthat extends beyond the boundaries of the visual display of theone-dimensional linear organizational tool 1424 and a region to theright that extends beyond the boundaries of the visual display of theone-dimensional linear organizational tool.

Because objects 1410, 1412, 1414, 1416, 1418, and 1420 are attached tothe one-dimensional linear organizational tool 1424 within theboundaries of the visual display of the one-dimensional linearorganizational tool 1424, objects 1410, 1412, 1414, 1416, 1418, and 1420will be displayed by the multi-touch display device as being attached tothe one-dimensional linear organizational tool 1424. In contrast,because objects 1402, 1404, 1406, 1408, and 1422 are attached to theone-dimensional linear organizational tool 1424 outside of theboundaries of the visual display of the one-dimensional linearorganizational tool 1424, objects 1402, 1404, 1406, 1408, and 1422 willnot be displayed by the multi-touch display device given the currentboundaries of the visual display of the one-dimensional linearorganizational tool 1424.

FIG. 14A(b) is a diagram of a multi-touch display device 1400 displayingthe one-dimensional linear organizational tool 1424 depicted in theschematic diagram of FIG. 14A(a). As illustrated in FIG. 14A(b), theboundaries of the visual display of the one-dimensional linearorganizational tool 1424 are defined by boundary handles 1430 and 1432and are consistent with the boundaries of the visual display of theone-dimensional linear grouping tool 1424 depicted by the dashed box1442 in FIG. 14A(a). As a consequence of the presently definedboundaries of the visual display of the one-dimensional organizationaltool, multi-touch display device 1400 displays objects 1410, 1412, 1414,1416, 1418, and 1420, but not objects 1402, 1404, 1406, 1408, and 1422.

Furthermore, to provide users with a glimpse of the full extent of theone-dimensional linear organizational tool 1424, multi-touch displaydevice 1400 displays preview semen 1426, which provides a visualrepresentation of the entirety of the one-dimensional linearorganizational tool 1424 and the spatial relationships between objectsattached to the one-dimensional organizational tool 1424. As illustratedin FIG. 14A(b), multi-touch display device 1400 provides window 1434 inconnection with the preview screen 1426 to identify the potion ofone-dimensional linear organizational tool 1424 and the objects attachedthereto that the multi-touch display device 1400 currently is displayingbetween boundary handles 1430 and 1432.

As the multi-touch display device 1400 manipulates one-dimensionalorganizational tool 1424 in response to user input, the multi-touchdisplay device 1400 also updates preview screen 1426 accordingly.

For example, referring to FIG. 14A(c), when the multi-touch displaydevice 1400 translates attachment strip 1428 to the right, therebybringing objects 1406 and 1408 within the boundaries of the visualdisplay of one-dimensional organizational tool 1424 while expellingobjects 1416, 1418, and 1420 from the visual display of one-dimensionalorganizational tool 1424, multi-touch display device 1400 alsotranslates window 1434 to the left identify the portion ofone-dimensional linear organizational tool now currently displayedbetween boundaries 1430 and 1432.

In some implementations, as users intact with objects attached to aone-dimensional linear organizational tool provided by a multi-touchdisplay device, the multi-touch display device causes a preview screendisplayed in connection with the one-dimensional linear organizationaltool to be updated to visually distinguish the representations of theobjects with which the users are interacting with from the visualrepresentations of the other objects attached to the one-dimensionalorganizational tool. For example, if a user has selected an objectattached to the one-dimensional organizational tool, the multi-touchdisplay device may highlight (or otherwise visually distinguish) thecorresponding visual representation of the selected object in thepreview screen. Additionally or alternatively, when an object is newlyattached to the one-dimensional organizational tool, the multi-touchdisplay device may highlight (or otherwise visually distinguish) thevisual representation of the newly attached object in the previewscreen. Similarly, when an object recently has been removed from theone-dimensional organizational tool, the multi-touch display device maypreserve the corresponding visual representation of the removed objectwithin the preview screen, but the multi-touch display device mayhighlight (or otherwise visually distinguish) the recently detachedobject to reflect that the object has been detached from theone-dimensional linear organizational tool.

FIG. 14B is a diagram of a multi-touch display device 1400 that providesa one-dimensional linear organizational tool 1424 and correspondingpreview screen 1426 and that visually distinguishes the visualrepresentations of objects displayed in the preview screen 1426 inresponse to detecting user interaction with corresponding objectsattached to the one-dimensional linear organizational tool 1424.

In particular, as illustrated in FIG. 14B, a user is engaging thesurface of multi-touch display device 1400 with finger 1438 at a pointcorresponding to object 1414. Multi-touch display device 1400 detectsthe input of finger 1438 and associates the detected input with object1414. Furthermore, in response to detecting this interaction with object1414, multi-touch display device 1400 highlights the correspondingvisual representation 1414′ of object 1414 within preview screen 1426 toreflect that the user presently is interacting with object 1414. (Inthis example, the multi-touch display device visually distinguishes thevisual representation 1414′ of object 1414 within the preview screen1426 from the other visual representations of attached objects withinthe preview screen by providing a dark outline and a light fill to thevisual representation 1414′ of object 1414.)

In addition, to providing controls for translating the attachment stripof a one-dimensional linear organizational tool, the multi-touch displaydevice also may provide controls for increasing and/or decreasing thescale of the one-dimensional linear organizational tool and the objectsattached to it. In such implementations, when the multi-touch displaydevice increases or decreases the scale of the one-dimensional linearorganizational tool, and the objects attached to it, the multi-touchdisplay device also may update a preview screen provided in connectionwith the one-dimensional linear organizational tool.

FIG. 14C is a sequence of diagrams of a multi-touch display device thatprovides controls for increasing or decreasing the scale of aone-dimensional linear organizational tool. As illustrated in thesequence of diagrams presented in FIG. 14C, in response to detectingthat a user has engaged attachment strip 1428 with two fingers 1438 and1440 and then moved the two fingers 1438 and 1440 further apart fromeach other, the multi-touch display device 1400 increases the scale ofattachment strip 1428 and the objects attached to the attachment strip1428 as a function of the detected movement of fingers 1438 and 1440.Similarly, though not illustrated, in response to detecting that a userhas engaged attachment strip 1428 with two fingers and then moved thetwo fingers closer together, the multi-touch display device 1400decreases the scale of the attachment strip 1428 and the objectsattached to the attachment strip 1428 as a function of the detectedmovement of the fingers.

As illustrated in the sequence of diagrams presented in FIG. 14C, thevisual effect of increasing the scale of attachment strip 1428 and theobjects attached to the attachment strip is to zoom in on a shorterlength of attachment strip 1428. As a result, object 1412 is expelledfrom the visual display of the one-dimensional organizational tool 1424and the sizes of objects 1404, 1406, 1408, and 1410 are increased.Furthermore, in response to performing the sealing operation, on theone-dimensional linear organizational tool, the multi-touch displaydevice also modifies window 1434 provided in connection with previewwindow 1426 so as to identify the portion of the one-dimensionalorganizational tool 1424 now located between boundary handles 1430 and1432. In particular, the multi-touch display device 1400 shortens thelength of window 1434 to reflect that a shorter length of theone-dimensional linear organizational tool 1424 is located betweenboundary handles 1430 and 1432 as a consequence of the sealingoperation.

FIG. 14D is a sequence of diagrams of a multi-touch display device thatprovides controls for redefining the visual boundaries of aone-dimensional linear organizational tool. As illustrated in FIG.14D(a), in response to detecting that a user has engaged boundary handle1430 with finger 1438 at a first point, and then has moved ringer 1438in a leftward direction, from the first point to a second point, asshown in FIG. 14D(b), the multi-touch display device 1400 brings thevisual boundaries of organizational tool 1424 closer together by adistance corresponding to the distance from the first point to thesecond point. Similarly, though not illustrated, in response todetecting that a user has engaged boundary handle 1430 with a finger andthen moving the finger in a rightward direction, the multi-touch displaydevice 1400 spreads the visual boundaries of organizational tool 1424further apart as a function of the detected movement of the fingers.

As illustrated in the sequence of diagrams presented in FIG. 14D, thevisual effect of bringing the visual boundaries of organizational tool1424 closer together is to display a shorter length of attachment strip1428, while attachment strip 1428 remains unaltered. As a result,objects 1414 and 1416 are expelled from the visual display of theone-dimensional organizational tool 1424, yet the sizes of 1404, 1408,1410, and 1412 remain constant. Furthermore, in response to redefiningthe visual boundaries of a one-dimensional linear organizational tool,the multi-touch display device also modifies window 1434 provided inconnection with preview window 1426 so as to identify the portion of theone-dimensional organizational tool 1424 now located between boundaryhandles 1430 and 1432. In particular, the multi-touch display device1400 shortens the length of window 1434 to reflect that a shorter lengthof the one-dimensional linear organizational tool 1424 is locatedbetween boundary handles 1430 and 1432 as a consequence of theredefining operation.

FIG. 14E illustrates a rotation of the organizational tool and theeffect that the rotation has on the preview screen and window. In thisexample, multi-touch display device 1400 currently displays objects1404, 1406, 1408, 1410, 1412, 1414, and 1416, organizational tool 1424,and preview screen 1426. Organizational tool 1424 includes an attachmentstrip 1428 and boundaries 1430 and 1432. Objects 1402, 1404, 1406, 1408,1410, 1412, 1414, 1416, and 1418 are attached to organizational tool1424 through attachment strip 1428. Preview screen 1426 indicates thecurrent total utilized length of attachment strip 1428, and includeswindow 1434, which outlines the potion of attachment strip 1428 that iscurrently being displayed between boundaries 1430 and 1432.

As multi-touch display device 1400 rotates organizational tool 1424, italso rotates preview screen 1426 and window 1434 in order to maintain avisual correspondence between organizational tool 1424, preview screen1426, and window 1434. Additionally, in this example objects 1402-1418are attached to attachment strip 1428 in the two-point manner, such thatmulti-touch display device 1400 displays objects 1402-1418 so they willalways visually maintain their absolute position with respect toorganizational tool 1424. In other words, the angular orientation ofobjects 1402, 1404, 1406, 1408, 1410, 1412, 1414, 1416, and 1418 willrotate equivalent to the rotation of organizational tool 1424.

In some implementations, a multi-touch display device that provides aone-dimensional linear organizational tool may provide controls forincreasing and/or decreasing the scale of one or more portions of theone-dimensional linear organizational tool and the objects attached tosuch portions(s), while preserving the pre-existing scale of the otherportions and the objects attached to such other portions.

FIG. 15 is a sequence of diagrams of a multi-touch display device 1500that provides a one-dimensional linear organizational tool 1524 andcontrols for increasing and/or decreasing the scale of one or moreportions of the one-dimensional linear organizational tool and theobjects attached to such portion(s), while preserving the pre-existingscale of the other portions and the objects attached to such portions.

In FIG. 15( a), a user is engaging the surface of multi-touch displaydevice 1500 with lingers 1538 and 1540 at points corresponding toattachment strip 1528. Multi-touch display device 1500 detects theinputs of fingers 1538 and 1540 and associates the detected inputs withorganizational tool 1524 and attachment strip 1528. As the userincreases the distance between fingers 1538 and 1540, as show in FIG.15( b), multi-touch display device 1500 detects the movement of fingers1538 and 1540 and interprets the detected movement as a request toincrease the scale of (e.g., stretch) the portion of organizational tool1524 and the objects attached thereto between the points cm attachmentstrip 1528 engaged by fingers 1538 and 1540 while preserving the scaleof portions of the organizational tool and objects attached theretooutside of the range defined by fingers 1538 and 1540. As a result, themulti-touch display device 1500 maintains the points on the attachmentstrip engaged by fingers 1538 and 1540 substantially beneath fingers1538 and 1540 while increasing the scale of attachment strip 1528 andthe objects attached thereto in the region of attachment strip 1528between fingers 1538 and 1540. Notably, the multi-touch display devicepreserves the pre-existing scale of the one-dimensional linearorganizational tool and the objects attached thereto outside of therange defined by fingers 1538 and 1540. In some respects, thistransformation enables manipulations similar to functionality providedby stretching a portion of a rubber band by holding the rubber band attwo points and increasing the distance between the two points beingheld.

In order to enlarge the display of one-dimensional organizational tool1524 between the two points engaged by fingers 1538 and 1540,multi-touch display device 1500 essentially zooms in on the portion ofattachment strip 1528 between the two points contacted by fingers 1538and 1540, while maintaining the scale tor the remainder of theone-dimensional linear organizational tool 1524. In addition,multi-touch display device 1500 increases the size of objects attachedbetween the two detected contact points (i.e. objects 1504, 1506, and1508). Concurrently, multi-touch display device 1500 shifts theremainder of the attachment strip 1528 and its attached objects notbetween the two detected contact points (i.e. objects 1502, 1510, and1512) in the direction of the motion of the detected inputs, so as tomake room for the increased size of the zoomed portion. In other words,as the scale of objects 1504, 1506, and 1508 is increased, multi-touchdisplay device 1500 shifts object 1502 left and objects 1510 and 1512right to allow far the increase.

Multi-touch display device 1500 may utilize this alternative method forsealing a one-dimensional linear organizational tool by default, or onlywhen a special mode is set. Furthermore, when it detects thedisengagement of the detected inputs, multi-touch display device 1500may maintain the scale of the attachment strip 1528 or, alternatively,multi-touch display device 1500 may return attachment strip 1528 to itsprevious scale, much like a rubber band snaps back to its previous statewhen the contact points on. the rubber baud are released.

FIGS. 16A and 16B illustrate how different parts of a single attachmentstrip may be viewed through multiple organizational tools, possibly onmore than one multi-touch display device.

FIG. 16A illustrates two separate multi-touch display devices, or twoportions of the same multi-touch display device, displaying a singleattachment strip through two organizational tools. Alternatively, themulti-touch display device(s) may display a single attachment stripthrough separate instances of the same organizational tool, to the sameeffect. The two separate multi-touch display devices may be in the sameroom, or they may be on separate continents. In certain implementations,two separate multi-touch display devices may facilitate such a parallelview with a communication link between the two multi-touch displaydevices. For example, two multi-touch display devices, each connected tothe Internet through a standard Internet Service Provider (ISP), may setup a communication link and share a single attachment strip. In responseto any manipulation done to the attachment strip, the multi-touchdisplay device(s) may concurrently reflect the manipulation through bothorganizational tools to two different users.

FIG. 16A(a) is diagram of a multi-touch display device 1600 displayingthe one-dimensional linear organizational tool 1616. The boundaries ofthe visual display of the one-dimensional linear organizational tool1616 are defined by boundary handles 1620 and 1622. As a consequence ofthe presently defined boundaries of the visual display of theone-dimensional organizational tool, multi-touch display device 1600displays objects 1602, 1604, 1606, and 1608. Likewise, FIG. 16A(b) is adiagram of a multi-touch display device 1624 displaying theone-dimensional linear organizational tool 1626. The boundaries of thevisual display of the one-dimensional linear organizational tool 1626are defined by boundary handles 1628 and 1630. As a consequence of thepresently defined boundaries of the visual display of theone-dimensional organizational tool, multi-touch display device 1624displays objects 1608, 1610, 1612, and 1614.

In FIG. 16A(a), a user is engaging the surface of multi-touch displaydevice 1600 with finger 1634 at a first point corresponding toattachment strip 1618. Multi-touch display device 1600 detects the inputof finger 1634 and associates the detected input with attachment strip1618. Referring to FIG. 16A(c), as the user drags finger 1634 across thesurface, from the first point to a second point, multi-touch displaydevice 1600 detects the position of the finger 1634 and translatesattachment strip 1618 by a distance corresponding to the distance fromthe first point to the second point. Thus, the multi-touch displaydevice 1600 translates attachment strip 1628 to the right by thedetected distance or a function of the detected distance, therebyexpelling object 1608 from the visual display of one-dimensionalorganizational tool 1600. Concurrently, multi-touch display device 1600communicates the translation of attachment strip 1628 to multi-touchdisplay device 1624. Upon receiving the translation information frommulti-touch display device 1600, as shown in FIG. 16A(d), multi-touchdisplay device 1624 translates attachment strip 1628 to the right by thedetected distance or a function of the detected distance, therebybringing objects 1606 and 1608 within the boundaries of the visualdisplay of one-dimensional organizational tool 1626.

FIG. 16B illustrates a similar concept as FIG. 16A, exceptorganizational tools 1616 and 1626 are displayed on the same multi-touchdisplay device. Thus, referring to FIG. 16B(a), a user is engaging thesurface of multi-touch display device 1600 with finger 1634 at a firstpoint corresponding to attachment strip 1618. Multi-touch display device1600 detects the input of finger 1634 and associates the detected inputwith the attachment strip 1618. Referring to FIG. 16B(b), as the userdrags finger 1634 across the surface, from the first point to a secondpoint, multi-touch display device 1600 detects the position of thefinger 1634 and translates attachment strip 1618 by a distancecorresponding to the distance from the first point to the second point.Thus, the multi-touch display device 1600 translates attachment strip1628 to the right by the detected distance or a function of the detecteddistance, thereby expelling object 1608 from the visual display ofone-dimensional organizational tool 1600. Concurrently, multi-touchdisplay device 1624 translates attachment strip 1628 to the right by thedetected distance or a function of the detected distance, therebybringing objects 1606 and 1608 within the boundaries of the visualdisplay of one-dimensional organizational tool 1626.

Two-Dimensional Rotary Organizational Tool

As described above in connection with FIGS. 3( a)-3(b), a multi-touchdisplay device may provide a two-dimensional rotary organizational toolthat enables manipulations similar to functionality provided by a LazySusan.

FIG. 17 is a diagram of a multi-touch display device that provides atwo-dimensional rotary organizational tool that illustrates techniquesfor attaching objects to the two-dimensional rotary organizational tool.In this example, multi-touch display device 1700 displays objects 1702,1704, 1706, 1708, 1710, and 1712 and organizational tool 1716.Organizational tool 1716 includes an control strip 1718. As describedabove, the control strip 1718 provides a mechanism for manipulatingorganizational tool 1716. In some implementations, control strip 1718will appear on top of objects attached to organizational tool 1716 inorder to provide a convenient way to manipulate organizational tool1716. Again, multi-touch display device 1700 may, in someimplementations, interpret an input to control strip 1716 as a requestto rotate organizational tool 1716 about its center. As such, no matterhow large multi-touch display device 1700 displays organizational tool1716, a user may engage control strip 1716 to rotate organizational tool1716, and have convenient access to all objects attached toorganizational tool 1716 without having to change his position withrelation to multi-touch display device 1700 or the overall position oforganizational tool 1716 with relation to the displayed workspace.

As illustrated in FIG. 17( a), object 1712 is attached to organizationaltool 1716. Objects 1702, 1704, 1706, 1708, and 1710, meanwhile, remainunattached.

In FIG. 17( a), a user is engaging the surface of multi-touch displaydevice 1700 with fingers 1726 and 1728 at distinct points along thesurface of the multi-touch display device 1700, each point correspondingto a point on the surface of objects 1702 and 1704, respectively.Multi-touch display device 1700 detects the input of fingers 1726 and1728 at a first pair of points and associates the detected inputs withobjects 1702 and 1704, respectively.

Referring to FIG. 17( b), as the user drags fingers 1726 and 1728 acrossthe surface, from the first pair of points to a second pair of points,multi-touch display device 1700 detects the position of the fingers 1726and 1728 and translates objects 1702 and 1704 by a distancecorresponding to a distance between the first pair of points and thesecond pair of points. In addition, while continuing to engage objects1702 and 1704, the user also engages the surface of multi-touch displaydevice 1700 with finger 1730 at a third point corresponding to controlstrip 1718. Eventually, as a result of the detected motion of fingers1726 and 1728, the multi-touch display device 1700 translates objects1702 and 1704, respectively, to a position overlapping organizationaltool 1716 and beneath control stripe 1718.

Subsequently, the user disengages fingers 1726 and 1728 from the surfaceof the multi-touch display device 1700, and the multi-touch displaydevice detects that the user has disengaged fingers 1726 and 1728 fromthe surface of multi-touch display device 1700. In response, themulti-touch display device determines whether objects 1702 and 1704visually overlap organizational tool 1716. Since objects 1702 and 1704do visually overlap organizational tool 1716, multi-touch display device1700 determines whether the disengagement of objects 1702 and 1704triggers attachment of objects 1702 and 1704 to organizational tool1716.

In certain implementations, the determination of whether thedisengagement should trigger an attachment is based on a stored rule orset of rules. For example, a rule may specify that a disengagement ofthe surface while multi-touch display device 1000 concurrently detects aseparate, continuous engagement of control strip 1718 will trigger anattachment of objects 1702 and 1704 to the organizational tool 1716.Alternatively or additionally, a rule may specify that a disengagementof the surface preceded by an engagement of the surface at a pressuregreater than a predetermined threshold and at points corresponding towhere objects 1702 and 1704 overlap the organizational tool 1716 willtrigger an attachment of objects 1702 and 1704 to the organizationaltool 1716.

In this example, because finger 1730 was engaging organizational tool1700 at the time when fingers 1726 and 1728 relinquished control ofobjects 1/02 and 1704, respectively (or within a threshold period oftime within the time at which fingers 1726 and 1728 relinquished controlof 1702 and 1704), multi-touch display device 1700 determines thatobjects 1702 and 1704 should be attached to organizational tool 1716.Therefore, multi-touch display device 1700 attaches objects 1702 and1704 to organizational tool 1716.

Referring now to FIG. 17( c), as the user drags finger 1730 in aclockwise fashion across the surface of multi-touch display device 1700,from the third point to a fourth point, multi-touch display device 1700detects the movement of finger 1730, interprets the detected movement asa request to rotate organizational tool 1716 by an angular distancecorresponding to the distance from the first point to the second point,and rotates organizational tool 1716 by the detected distance or afunction or the detected distance. In this example, objects 1702, 1704,and 1712 each are attached to organizational tool 1716 at two or morepoints. Therefore, when the multi-touch display device 1700 rotatesorganizational tool 1716, the multi-touch display device 1700corresponding rotates each of displayed objects 1702, 1704, and 1712 aswell.

FIG. 18 is a diagram of a multi-touch display device that provides atwo-dimensional rotary organizational tool that illustrates techniquesfor detaching objects from the two-rotary organizational tool. In thisexample, multi-touch display device 1800 displays objects 1802, 1804,and 1806 and organizational tool 1816. Organizational tool 1816 includesa control strip 1818.

Referring to FIGS. 18( a), a user has engaged the surface of multi-touchdisplay device 1800 with finger 1826 at a first point corresponding toobject 1802. The multi-touch display device 1800 detects the input offinger 1826, and associates the input with object 1802.

After detecting the engagement of finger 1826, multi-touch displaydevice 1800 determines whether any future movements of the finger 1826should trigger a detachment of object 1802. In this example, multi-touchdisplay device 1800 determines that object 1802 should be detached fromorganizational tool 1816. Thereafter, in reference to FIG. 18( b), theuser drags finger 1826 across the surface of the multi-touch displaydevice 1800 in a rightward motion from the first point to a secondpoint. In response to detecting the movement of finger 1826, multi-touchdisplay device 1800 translates object 1802 by a distance correspondingto a distance from the first point to the second point. In someimplementations, multi-touch display device 1810 detaches object 1802from organizational tool 1816 when multi-touch display device 1800detects that fingers 1826 disengages the surface of multi-touch displaydevice 1800 and determines that object 1802 no longer overlapsorganizational tool 1816.

FIGS 19(a)-19(c) are diagrams of a multi-touch display device thatillustrate an example of the multi-touch display device automaticallyadjusting the angular orientation of an object upon attaching the objectto a two-dimensional rotary organizational tool. In these figures,multi-touch display device 1900 displays objects 1902, 1904, 1906, and1908 and organizational tool 1916. Organizational tool 1916 includes ancontrol strip 1918. Objects 1904, 1906, and 1908 are attached toorganizational tool 1916.

Referring to FIG. 19( a), objects 1904, 1906, and 1908 are attached totwo-dimensional rotary organizational tool such that their angularorientations are consistent with radial axes of the two-dimensionalrotary organizational tool. Stated differently, the vertical axes ofeach of objects 1904, 1906, and 1908 is parallel to corresponding radialaxes of organizational tool 1916, and the horizontal axes of each ofobjects 1904, 1906, and 1908 is orthogonal to corresponding radial axesof organizational tool 1916.

As illustrated in the sequence of FIGS. 19( a)-19(c), when themulti-touch display device 1900 attaches object 1902 to theorganizational tool 1616 (shown in FIG. 19( c)) the multi-touch displaydevice automatically adjusts the angular rotation of object 1902 suchthat it is consistent with a corresponding radial axis of organizationaltool 1916. To adjust the angular rotation of object 1902, multi-touchdisplay device 1900 may, for example, determine the vertical and/orhorizontal axes of object 1902, determine the corresponding radial axisof organizational tool 1616 at the point at winch object 1902 is beingattached, and rotate object 1902 such that its vertical axes of object1902 is parallel to the corresponding radial axis of organizational tool1616 and/or the horizontal axis of object 1902 is orthogonal to thecorresponding radial axis of organizational tool 1616.

The multi-touch display device 1900 adjusting the angular rotation ofobject 1902 to be consistent with a corresponding radial axis oforganizational tool 1916 is important where, as shown in FIG. 19( d),multi-touch display device 1900 displays organizational tool 1916 at thetop portion of multi-touch display device 1900 and such that multi-touchdisplay device 1900 only displays a bottom portion of organizationaltool 1916. When multi-touch display device 1900 makes the angularrotation of the objects attached to organizational tool 1916 to beconsistent with a corresponding radial axis of organizational tool 1916,multi-touch display device 1900 will display the attached objects suchthat a user will have access to attached objects at an orientationappropriate for the user to properly view the object. Alternatively,multi-touch display device 1900 displays organizational tool 1916 at thebottom portion of multi-touch display device 1900 and such thatmulti-touch display device 1900 only displays a top portion oforganizational tool 1916. In such an example, multi-touch display device1900 may rotate the angular orientation of each attached object onehundred and eighty degrees with respect to the corresponding radial axisof organizational tool 1916, in order to produce a similar visual effectas shown in FIG. 19( d).

In certain implementations, multi-touch display device 1900 may alsodetermine a preferred orientation for objects that are detached fromorganizational tool 1916, such that multi-touch display device 1900displays the detached object consistent with the orientation ofmulti-touch display device 1900 with respect to the user, andautomatically rotate the detached object to the preferred orientation.As illustrated in the sequence Of FIGS. 19( e)-19(f), multi-touchdisplay device 1900 automatically adjusting the angular orientation ofan object upon detaching object 1902 from organizational tool 1916. Toadjust the angular rotation of object 1902, multi-touch display device1900 may, for example, determine the vertical and/or horizontal axes ofmulti-touch display device 1900 with relation to the viewing angle ofthe viewer, determine the vertical and/or horizontal axes of the object1902, and rotate object 1902 such that its vertical axes and/orhorizontal axes corresponds to the vertical and/or horizontal axes ofmulti-touch display device 1900.

As discussed above, one effect of an object being attached to anorganizational tool is that when the multi-touch display device appliestransformations to the organizational tool, the-multi-touch displaydevice also may apply transformations to the objects attached to theorganizational tool as a consequence of their attachment. However whenthe multi-touch display device applies a transformation to anorganization tool, the transformations that the multi-touch displaydevice applies to objects attached to the organizational tool may dependupon how the objects are attached to the organizational tool.

In some cases, the multi-touch display device may attach an object to anorganizational tool at only a single point. In such cases,transformations applied to the organizational tool only impact anattached object (i.e., cause a corresponding transformation to beapplied to the attached object) if the transformations applied to theorganizational tool impact the point upon the organizational tool atwhich the object is attached.

The manner in which all objects are attached to a organizational toolmay be set for a given organizational tool by the user or they may beautomatically preset upon creation by the multi-touch display device.Alternatively, the manner in which objects are attached to aorganizational tool may be detected separately for each object uponbeing attached to the organizational tool.

FIG. 20 illustrates a multi-touch display device performingtransformations to an organizational tool and its attached objects whenthe attached objects are attached to the organizational tool at only onepoint. As illustrated in FIG. 20( a), objects 2002, 2004, and 2006 eachare attached to organizational tool 2016 at one point. Therefore, whenthe multi-touch display device 2000 rotates organizational tool 2016 inresponse to detecting input by finger 2026 engaging the organizationaltool, as shown in FIG. 20( b), the multi-touch display device 2000corresponding translates each of displayed objects 2002, 2004, and 2006only with regard to whether and how the rotation of organizational tool2016 impacts the point upon the organizational tool 2016 at whichobjects 2002, 2004, and 2006 are attached.

In some implementations, a multi-touch display device may providecontrols for further organizing objects attached to an organizationaltool provided by the multi-touch display device even after the objectshave been attached to the organizational tool. For example, themulti-touch display device may attach an object to the organizationaltool such that the object is attached to the organizational tool at theposition occupied by the object on the organizational tool at the pointin time when the multi-touch display device determined to attach theobject to the organizational tool irrespective of how many other objectsalso are attached to the organizational tool at the same or similarpositions. Furthermore, the multi-touch display device may preserve theangular orientation of the an object upon attaching the object to anorganizational tool. This may lead to a cluttering of the organizationaltool as more and more objects are attached to the organizational tool.Therefore, the multi-touch display device may provide controls forrearranging the objects attached to an organizational tool into a moreorganized fashion.

FIG. 21 illustrates a multi-touch display device providing controls Fororganizing objects attached to an organizational tool.

As illustrated, in FIG. 21( a), organizational tool 2118 is operating ina free (“messy”) attachment mode such that the multi-touch displaydevice 2100 preserves the angular orientation of objects upon attachingthe objects to the organizational tool 2118 and such that the objectsare attached to the organizational tool 2118 at the positions occupiedby the objects at the points in time when the multi-touch display device2100 determines to attach the objects to the organizational tool.Multi-touch display device 2100 may display a button to indicate inwhich attachment mode organizational tool 2118 is operating. Thus, inFIG. 21( a), multi-touch display device 2100 displays a “Messy” buttonin the center of organizational tool 2118. In the event that the usereventually wishes to organize the objects that were attached in the freeattachment mode, the organizational tool 2118 provides a control totoggle the organizational tool 2118 into an organized (“clean”)attachment mode.

FIG. 21( b) illustrates a possible result of a transition from a feeattachment mode to an organized attachment mode. Thus, upon detecting aninput from a user indicating a request to implement organized attachmentmode, organizational tool 2118 is partitioned into sections (similar inthis example to pie slices of organizational tool 2118) to accommodateobjects 2106, 2108, 2110, 2112, 2114, and 2116. Furthermore, each objectis assigned to the section closest to where it was originally attachedin the free attachment mode, and is reoriented such that it isconsistent with a corresponding radial axis of organizational tool 2118(similar to the reorientation discussed above with regard to FIGS. 19(a)-19(c)). While operating organizational tool 2118 in organized mode,multi-touch display device 2100 may display a “Clean” button in thecenter of organizational tool 2118.

Furthermore, in FIG. 21( b), a user engaging the surface of multi-touchdisplay device 2100 with fingers 2126 and 2128 at points correspondingto objects 2102 and 2104, respectively, and drags fingers 2126 and 2128to points where objects 2102 and 2104 overlap organizational tool 2118.Multi-touch display device 2100 detects the input of fingers 2126 and2128, associates the detected inputs with objects 2102 and 2104,respectively, and continues to update the position of objects 2102 and2104 with respect to the detected inputs. The user disengages fingers2126 and 2128 at the point where objects 2102 and 2104 multi-touchdisplay device 2100 displays the objects 2102 and 2104 as shown in FIG.21 (c).

Multi-touch display device 2100 detects the disengagement of fingers2126 and 2128, and determines that objects 2102 and 2104 should beattached to organizational tool 2118. In order to attach objects 2102and 2104 to organizational tool 2118 in organized mode, however,multi-touch display device 2100 rearranges the already attached objects2102, 2104, 2106, 2108, 2110, 2112, 2114, and 2116. To do so,multi-touch display device 2100 first resizes all attached objects 2102,2104, 2106, 2108, 2110, 2112, 2114, and 2116 so that they may be evenlyspaced along the outer circumference of organizational tool 2118.Objects that are engaged by user 2124 maybe given priority to theposition at which they are moved, and all other objects are moved to thenext nearest available position. Thus, in FIG. 21( d), multi-touchdisplay device 2100 gives positional priority to objects 2102 and 2104with regard to the point at which they are disengaged, respectively.Multi-touch display device 2100 shifts objects 2106, 2108, 2110, 2112,2114, and 2116, which were already attached to organizational tool 2118and were not engaged by the user, to the next closest position that isavailable around the circumference. Finally, multi-touch display device2100 reorients each attached object such that each object is consistentwith a corresponding radial axis of organizational tool 2118.

The described systems, methods, and techniques may be implemented indigital electronic circuitry, computer hardware, firmware, software, orin combinations of these elements. Apparatuses embodying thesetechniques may include appropriate input and output devices, a computerprocessor, and a tangible computer-readable storage medium on which acomputer program or other computer-readable instructions are stored forexecution by one or more processing devices (e.g., a programmableprocessor).

A process embodying these techniques may be performed by a programmableprocessor executing a program of instructions to perform desiredfunctions by operating on input data and generating appropriate output.The techniques may be implemented in one or more computer programs thatare executable on a programmable system Including at least oneprogrammable processor coupled to receive data and instructions from,and to transmit data and instructions to, a data storage system, atleast one input device, and at least one output device. Each computerprogram may be implemented in a high-level procedural or object-orientedprogramming language, or in assembly or machine language if desired; andin any case, the language may be a compiled or interpreted language.

Suitable processors include, by way of example, both general and specialpurpose microprocessors. Generally, a processor will receiveinstructions and data from a read-only memory and/or a random accessmemory. Storage devices suitable for storing computer programinstructions and data include all forms of non-volatile memory,including by way of example semiconductor memory devices, such asErasable Programmable Read-Only Memory (EPROM), Electrically ErasableProgrammable Read-Only Memory (EEPROM), and flash memory devices;magnetic disks such as internal hard disks and removable disks;magneto-optical disks; and Compact Disc Read-Only Memory (CD-ROM). Anyof the foregoing may be supplemented by, or incorporated in,specially-designed application-specific integrated circuits (ASICs).

Multi-touch display devices encompass a wide variety of display devicesand associated systems and components. Some multi-touch display devicesrequire physical contact with a surface of the multi-touch displaydevice in order to receive input. For example, such a multi-touchdisplay device may receive input by detecting contact with a surface ofthe multi-touch display device by a finger, a stylus, some othermechanical, electro-mechanical, or magnetic input mechanism and/or anycombination of multiple such input mechanisms at the same time.Furthermore, some such multi-touch display devices may be configuredsuch that the surface that receives input may appear to be the samesurface on which the multi-touch display device displays objects(whether or not the surface that receives input actually is the samesurface as the surface on which the multi-touch display device displaysobjects). Alternatively, other such multi-touch, display devices mayreceive input on a surface that is clearly remote and distinct fromthe-surface on which the multi-touch display device displays objects.One example of such a multi-touch display system is a multi-point inputcapable standalone tablet that provides input to a remote and distinctdisplay.

Other multi-touch display devices do not require physical contact withthe surface of the multi-touch display device in order to receive input.For example, such multi-touch display devices may receive input bydetecting the presence of a finger, a stylus, some other mechanical,electro-mechanical, or magnetic input mechanism and/or any combinationof multiple such input mechanisms in the vicinity of the surface of themulti-touch display device even when such input mechanisms are not inphysical contact with the surface of the multi-touch display device.

Furthermore, the various different transformations and annotationsdisclosed herein may be implemented by any other type of multi-pointcomputing system configured to receive multiple inputs at the same,including, for example, systems configured to receive concurrent inputfrom multiple pointing devices (e.g., multiple computer mice) and/orconcurrent input from one or more pointing devices and another inputdevice (e.g., a keyboard). Moreover, some of the various differenttransformations and annotations disclosed herein are not limited toimplementation on a multi-touch display device and thus may beimplemented on a single-point device.

Various modifications may be made. For example, useful results still maybe achieved if steps of the disclosed techniques are performed in adifferent order. Moreover, useful results may be achieved by combiningvarious steps or components of the various disclosed techniques in adifferent manner and/or if components of the disclosed systems arecombined in a different manner and/or replaced or supplemented by othercomponents.

1-6. (canceled)
 7. A computer-implemented display method, comprising:displaying on a multi-touch display an attachment strip having aone-dimensional extent, with a plurality of objects attached to theattachment strip, the plurality of objects being scrollable in tandemalong the one dimensional extent of the strip; detecting a first touchinput and a second touch input on the attachment strip, the first andsecond touch input being proximate one or more target objects of theplurality of objects attached to the attachment strip; detectingrelative movement along the one dimensional extent between the firsttouch input and the second touch input; and scaling the one or moretarget objects in accordance with the detected relative movement,without scaling the other of the plurality of objects.
 8. The method ofclaim 7, wherein the one or more target objects are located between thefirst touch input and the second touch input on the attachment strip,and the other of the plurality of objects are not located between thefirst touch input and the second touch input on the attachment strip. 9.The method of claim 7, wherein the relative movement causes a distancebetween the first touch input and the second touch input to increase,and scaling the one or more target objects comprises increasing thescale of the one or more target objects.
 10. The method of claim 9,further comprising, as a consequence of the relative movement betweenthe first touch input and the second touch input, zooming in on aportion of the attachment strip between the first touch input and thesecond touch input, and not zooming in on another portion of theattachment strip that is not between the first touch input and thesecond touch input.
 11. The method of claim 7, wherein the relativemovement between the first touch input and the second touch input causesa distance between the first touch input and the second touch input todecrease, and scaling the one or more target objects comprisesdecreasing the scale of the one or more target objects.
 12. The methodof claim 7, further comprising, as a consequence of the relativemovement between the first touch input and the second touch input,translating each of the other of the plurality of objects in a directionof motion of either the first touch input or the second touch input. 13.The method of claim 12, wherein translating each of the other of theplurality of objects further comprises, for each of the other of theplurality of objects, translating the other object in the direction ofmotion of either the first touch input or the second touch input,whichever of the first touch input or the second touch input is locatedcloser to the other object.
 14. The method of claim 7, furthercomprising: detecting a disengagement of the first touch input and thesecond touch input from the attachment strip; and as a consequence ofdetecting the disengagement, maintaining the scaling of the one or moretarget objects.
 15. The method of claim 7, further comprising: detectinga disengagement of the first touch input and the second touch input fromthe attachment strip; and as a consequence of detecting thedisengagement, returning the scaling of the one or more target objectsto a previous scaling of the one or more target objects that existedprior to the relative movement between the first touch input and thesecond touch input.
 16. The method of claim 7, wherein scaling the oneor more target objects in accordance with the detected relative movementwithout scaling the other of the plurality of objects is performed whena special mode is set, and is not performed when the special mode is notset.
 17. A multi-touch display device, comprising: a processor; and aprogram of instructions executable by the processor, the program ofinstructions configured to: display on the multi-touch display device anattachment strip having a one-dimensional extent, with a plurality ofobjects attached to the attachment strip, the plurality of objects beingscrollable in tandem along the one dimensional extent of the strip;detect a first touch input and a second touch input on the attachmentstrip, the first and second touch input being proximate one or moretarget objects of the plurality of objects attached to the attachmentstrip; detect relative movement along the one dimensional extent betweenthe first touch input and the second touch input; and scale the one ormore target objects in accordance with the detected relative movement,without scaling the other of the plurality of objects.
 18. Themulti-touch display device of claim 17, wherein the one or more targetobjects are located between the first touch input and the second touchinput on the attachment strip, and the other of the plurality of objectsare not located between the first touch input and the second touch inputon the attachment strip.
 19. The multi-touch display device of claim 17,wherein the relative movement causes a distance between the first touchinput and the second touch input to increase, and scaling the one ormore target objects comprises increasing the scale of the one or moretarget objects.
 20. The multi-touch display device of claim 19, whereinthe program of instructions is further configured to, as a consequenceof the relative movement between the first touch input and the secondtouch input, zoom in on a portion of the attachment strip between thefirst touch input and the second touch input, and not zoom in on anotherportion of the attachment strip that is not between the first touchinput and the second touch input.
 21. The multi-touch display device ofclaim 17, wherein the relative movement between the first touch inputand the second touch input causes a distance between the first touchinput and the second touch input to decrease, and scaling the one ormore target objects comprises decreasing the scale of the one or moretarget objects.
 22. The multi-touch display device of claim 17, whereinthe program of instructions is further configured to, as a consequenceof the relative movement between the first touch input and the secondtouch input, translate each of the other of the plurality of objects ina direction of motion of either the first touch input or the secondtouch input.
 23. The multi-touch display device of claim 22, wherein theprogram of instructions is further configured to, for each of the otherof the plurality of objects, translate the other object in the directionof motion of either the first touch input or the second touch input,whichever of the first touch input or the second touch input is locatedcloser to the other object.
 24. The multi-touch display device of claim17, wherein the program of instructions is further configured to: detecta disengagement of the first touch input and the second touch input fromthe attachment strip; and as a consequence of detecting thedisengagement, maintain the scale of the one or more target objects. 25.The multi-touch display device of claim 17, wherein the program ofinstructions is further configured to: detect a disengagement of thefirst touch input and the second touch input from the attachment strip;and as a consequence of detecting the disengagement, return the scale ofthe one or more target objects to a previous scale of the one or moretarget objects that existed prior to the relative movement between thefirst touch input and the second touch input.
 26. A computer-implementeddisplay method, comprising: displaying on a multi-touch display anattachment strip having a one-dimensional extent, with a plurality ofobjects attached to the attachment strip, the plurality of objects beingscrollable in tandem along the one dimensional extent of the strip;detecting a first touch input and a second touch input on the attachmentstrip, the first and second touch input being proximate one or moretarget objects of the plurality of objects attached to the attachmentstrip; detecting relative movement along the one dimensional extentbetween the first touch input and the second touch input; scaling theone or more target objects in accordance with the detected relativemovement, without scaling the other of the plurality of objects; as aconsequence of the relative movement between the first touch input andthe second touch input, translating each of the other of the pluralityof objects in a direction of motion of either the first touch input orthe second touch input, whichever of the first touch input or the secondtouch input is located closer to the other object.